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Happy 40th, Keri Russell! See her hair evolution from 'Felicity' to 'The Americans'

Russell told TODAY of her "Felicity" hairstyle change, "It was, like, kind of amazing that anyone cared. But, yeah, it was a big deal."
/ Source: TODAY

Happy 40th birthday, Keri Russell!

A cast member on "The All-New Mickey Mouse Club" in the early '90s, Russell became a household name in 1998 as the star of the WB's "Felicity." These days, the award-winning actress continues to impress fans and critics on the FX drama "The Americans." Along the way, Russell also became a style icon, especially when it comes to her hair — including the most buzzworthy 'do of the late '90s, this side of "The Rachel."

Starting with her "Felicity" look and wrapping with her current coif, here's a look at the hair evolution of Russell.

RELATED: The long and colorful history of Jared Leto's hair

1998-99: Winning curls

382614 01: 1/23/99 Beverly Hills, CA. Keri Russell (\"Felicity\") at the 56th Annual Golden Globe Awards.Brenda Chase / Getty Images

Bestowed with the 1999 Golden Globe Award for best actress in a TV drama just months after "Felicity" premiered, Russell called the acknowledgement "encouraging" during her acceptance speech.

1999: Short-lived

LOS ANGELES - SEPTEMBER 12: Actress Keri Russell attends the 51st Annual Primetime Emmy Awards on September 12, 1999 at the Shrine Auditorium in Los Angeles, California. (Photo by Ron Galella, Ltd./WireImage) *** Local Caption *** Keri RussellRon Galella, Ltd. / WireImage

After Russell chopped her locks between "Felicity's" first and second seasons, some in the entertainment industry blamed the cut for a Season 2 ratings drop."It was, like, kind of amazing that anyone cared," Russell told TODAY last October, when she reunited with "Felicity" cast members Scott Speedman and Scott Foley. "But, yeah, it was a big deal. People love hair."

RELATED: 'Felicity' cast reunites to talk Ben vs. Noel — and that controversial haircut

2001: Shouldering longer curls

393096 28: Actress Keri Russell arrives at the St. Regis Monarch Beach Resort & Spa grand opening August 11, 2001 in Dana Point, CA. (Photo by Getty Images)Getty Images

With "Felicity" winding down, Russell sported slightly longer curls while pursuing other opportunities.

2002: Flat-out done with "Felicity"

401444 32: Actress Keri Russell arrives at the premiere of the movie \"We Were Soldiers\" February 25, 2002 in Westwood, CA. (Photo by J. Emilio Flores/Getty Images)J. Emilio Flores / Getty Images

Russell showcased smoother hair as "Felicity" came to a close in 2002, the same year her film "We Were Soldiers" arrived in theaters.

2004: Highlight reel

NEW YORK - NOVEMBER 8: Actress Keri Russell attends the 15th Annual Glamour \"Women of the Year\" Awards at the American Museum of Natural History November 8, 2004 in New York City. (Photo by Evan Agostini/Getty Images)Evan Agostini / Getty Images

Russell complemented her brunette tresses with lighter tones on the red carpet.

RELATED: Slideshow: Keri Russell

2008: Making waves

LOS ANGELES, CA - DECEMBER 18: Actress Keri Russell arrives at the premiere of Disney's \"Bedtime Stories\" at the El Capitan Theatre December 18, 2008 in Los Angeles, California. (Photo by Michael Buckner/Getty Images) *** Local Caption *** Keri RussellMichael Buckner / Getty Images

Russell showed off some sophistication at a premiere for Disney's "Bedtime Stories," in which she starred.

2010: Swept away

LOS ANGELES, CA - AUGUST 29: Actress Keri Russell arrives at the 62nd Annual Primetime Emmy Awards held at the Nokia Theatre L.A. Live on August 29, 2010 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) *** Local Caption *** Keri RussellFrazer Harrison / Getty Images

Russell set her hair, and other potential projects, to the side as she joined the cast of the short-lived Fox comedy "Running Wilde" in 2010.

2011: Strictly business

NEW YORK, NY - APRIL 06: Actress Keri Russell attends the New York screening of \"Hanna\" at Regal Union Square on April 6, 2011 in New York City. (Photo by Jason Kempin/Getty Images) *** Local Caption *** Keri RussellJason Kempin / Getty Images

Russell sported a professional look, and likely would have crushed any PowerPoint presentation, while attending a screening of the movie "Hanna."

2013: "American" ombré

NEW YORK, NY - OCTOBER 04: Keri Russell attends \"The Americans\" panel during 2013 PaleyFest: Made In New York at The Paley Center for Media on October 4, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images)Jamie McCarthy / Getty Images

Russell's new ombré contrasted the shadowy look and feel of her hit FX show "The Americans," which premiered to rave reviews in 2013.

RELATED: 'Americans' star Keri Russell invited a 'badass' to son's 7th birthday party

2014: "Dawn" of a classic style

MADRID, SPAIN - JULY 16: Actress Keri Russell attends the \"Dawn of the Planet of the Apes\" (Amanecer en el Planeta de los Simios) premiere at the Capitol cinema on July 16, 2014 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)Carlos Alvarez / Getty Images

Russell donned longer waves for an international premiere of her 2014 movie "Dawn of the Planet of the Apes."

2016: "Free" to play it straight

NEW YORK, NY - MARCH 05: Actress Keri Russell attends \"The Americans\" season 4 premiere on March 5, 2016 in New York City. (Photo by Michael Loccisano/Getty Images)Michael Loccisano / Getty Images

In addition to "The Americans," for which she's received three Critics' Choice Award nominations, Russell stars with Matthew McConaughey in the Civil War film "Free State of Jones," arriving in theaters June 24.

Follow writer Chris Serico on Twitter.