• Slideshow Photos

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    Image: Steve Martin attends "Backstage at the Geffen" in Los Angeles

    Celebrity Sightings

    Jon Hamm is honored as a "Mad Men," and more in celebrity sightings

  • Image: Steve Martin attends "Backstage at the Geffen" in Los Angeles

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    Steve Martin

    Steve Martin attends "Backstage at the Geffen" in Los Angeles on March 22.

    Reuters / Reuters
  • Image: The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men"

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    Jon Hamm, Vincent Kartheiser

    Jon Hamm and Vincent Kartheiser on stage at The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men" at Dolby Theatre in Hollywood, Calif., on March 21.

    Getty Images / Getty Images
  • Image: The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men"

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    Kiernan Shipka

    Kiernan Shipka arrives at The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men" at Dolby Theatre in Hollywood, Calif., on March 21.

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  • Image: Jessica Pare

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    Jessica Pare

    Jessica Pare arrives at The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men" at the Dolby Theatre in Hollywood, Calif., on March 21.

    AP / AP
  • Image: The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men"

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    Elisabeth Moss

    Elisabeth Moss arrives at The Paley Center For Media's PaleyFest 2014 Honoring "Mad Men" at Dolby Theatre in Hollywood, Calif., on March 21.

    Getty Images / Getty Images
  • Image: BESTPIX: Miami Walk Of Fame Inauguration

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    Anne Hathaway

    Anne Hathaway poses with a bird during the Miami Walk Of Fame inauguration at Bayside Marketplace in Miami on March 21.

    Getty Images  / Getty Images
  • Image: Rio 2 Premiere - Arrivals

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    Tracy Morgan

    Tracy Morgan attends the 'Rio 2' Premiere at Fontainebleau Miami Beach in Miami Beach, Fla., on March 21.

    Getty Images  / Getty Images
  • Image: Rio 2 Premiere - Arrivals

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    George Lopez

    George Lopez attends the 'Rio 2' Premiere at Fontainebleau Miami Beach in Miami Beach, Fla., on March 21.

    Getty Images  / Getty Images
  • Image: Rio 2 Premiere - Arrivals

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    Janelle Monae

    Janelle Monae attends the 'Rio 2' Premiere at Fontainebleau Miami Beach in Miami Beach, Fla., on March 21.

    Getty Images  / Getty Images
  • Image: Celebrity Sightings In New York City - March 21, 2014

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    Kate Upton

    Kate Upton is seen walking in Soho in New York on March 21.

    Getty Images  / Getty Images
  • Image: Rio Press Conference and Photocall of "NOAH"

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    Russell Crowe

    Russell Crowe attends the photocall of "Noah" at the the Fasano Hotel in Rio de Janeiro on March 21.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In Los Angeles - March 21, 2014

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    Emma Roberts

    Emma Roberts is seen in Los Angeles on March 21.

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  • Image: BESTPIX: Celebrity Sightings In New York City - March 21, 2014

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    Maggie Gyllenhaal

    Maggie Gyllenhaal is seen in New York on March 21.

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  • Image: Celebrity Sightings In Los Angeles - March 21, 2014

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    Bruce Willis, Emma Heming

    Bruce Willis and Emma Heming are seen in Los Angeles on March 21.

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  • Image: An Evening of Environmental Excellence Presented By The UCLA Institute Of The Environment And Sustainability

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    Courteney Cox

    Courteney Cox attends an Evening of Environmental Excellence presented by The UCLA Institute Of The Environment And Sustainability at Private Residence in Los Angeles on March 21.

    Getty Images / Getty Images
  • Image: Kristen Stewart And Julianne Moore On Location For "Still Alice"

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    Kristen Stewart

    Kristen Stewart filming on location for "Still Alice" at Lido Beach, N.Y., on March 21.

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  • Image: BBC AMERICA Wild Things With Dominic Monaghan Season Two Premiere Screening At The LA Zoo And Botanical Gardens

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    Dominic Monaghan

    Dominic Monaghan attends the BBC America Wild Things with Dominic Monaghan season two premiere screening at the Los Angeles Zoo in Los Angeles on March 22.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In New York City - March 22, 2014

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    Johnny Depp, Amber Heard

    Johnny Depp and Amber Heard are seen in New York on March 22.

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  • Image: Celebrity Sightings In New York City - March 22, 2014

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    Peter Dinklage

    Peter Dinklage is seen in New York on March 22.

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  • Image: Yoko Ono Performs At Cafe OTO

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    Yoko Ono

    Yoko Ono performs at Cafe OTO in London on March 22.

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  • Image: Disney's "The Pirate Fairy" World Premiere

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    Christina Hendricks

    Christina Hendricks attends Disney's "The Pirate Fairy" World Premiere at Walt Disney Studios in Burbank, Calif., on March 22.

    Getty Images / Getty Images
  • Image: Premiere Of DisneyToon Studios' "The Pirate Fairy" - Arrivals

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    Mae Whitman

    Mae Whitman attends the premiere of DisneyToon Studios' "The Pirate Fairy" at Walt Disney Studios in Burbank, Calif., on March 22.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In New York City - March 22, 2014

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    Madonna

    Madonna is seen in New York on March 22.

    Getty Images  / Getty Images
  • Image: SWV In Concert - Washington, DC

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    Marlon Wayans

    Marlon Wayans introduces SWV at Howard Theater in Washington on March 23.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In Los Angeles - March 22, 2014

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    Matthew McConaughey

    Matthew McConaughey is seen in Los Angeles on March 22.

    Getty Images  / Getty Images
  • Image: Celebrities At The Los Angeles Clippers Game

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    Mila Kunis, Ashton Kutcher

    Mila Kunis and Ashton Kutcher attend a basketball between the Detroit Pistons and the Los Angeles Clippers at Staples Center in Los Angeles on March 22.

    Getty Images  / Getty Images
  • Image: Miley Cyrus Bangerz Tour In Miami

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    Miley Cyrus

    Miley Cyrus performs at AmericanAirlines Arena in Miami on March 22.

    Getty Images  / Getty Images
  • Image: Human Rights Campaign Los Angeles Gala Dinner - Inside

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    Jesse Tyler Ferguson

    Jesse Tyler Ferguson speaks during the Human Rights Campaign Los Angeles Gala Dinner at JW Marriott Los Angeles at L.A. LIVE in Los Angeles on March 22.

    Getty Images / Getty Images
  • Image: Adam Braun Book Signing For "The Promise Of A Pencil"

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    Sophia Bush

    Sophia Bush attends the book signing for Adam Braun's new book "The Promise Of A Pencil" at Barnes & Noble bookstore at The Grove in Los Angeles on March 23.

    Getty Images  / Getty Images
  • Image: Celebrity Sighting In Tokyo

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    Lionel Richie

    Lionel Richie is seen upon arrival at Narita International Airport in Narita, Japan on March 24.

    Getty Images  / Getty Images
  • Image: Lady Gaga Visits the SiriusXM Studios

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    Lady Gaga

    Lady Gaga visits the SiriusXM Studios in New York on March 21.

    Getty Images / Getty Images
  • Image: Anna Kendrick

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    Anna Kendrick

    Anna Kendrick arrives at Backstage At The Geffen Gala in Los Angeles on March 22.

    AP / AP
  • Image: Samuel L. Jackson

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    Samuel L. Jackson

    Samuel L. Jackson attends a publicity event ahead of the April release of his movie "Captain America: The Winter Soldier" in Beijing on March 24.

    AP / AP
  • Image: Scarlett Johansson

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    Scarlett Johansson

    Scarlett Johansson talks to journalists during a publicity event ahead of the April release of the movie "Captain America: The Winter Soldier" in Beijing on March 24.

    AP / AP
  • Image: Elizabeth Henstridge, Clark Gregg

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    Elizabeth Henstridge, Clark Gregg

    Elizabeth Henstridge and Clark Gregg arrive at PaleyFest 2014 "Marvel's Agents of S.H.I.E.L.D." in Los Angeles on March 23.

    AP / AP