Ashton Kutcher

Ashton Kutcher and actress Mila Kunis sit courtside at an NBA basketball game between the New Orleans Pelicans and Los Angeles Lakers in Los Angeles on March 4, 2014.

The two stars, who found fame together on "That '70s Show" as Jackie and Kelso, started dating in the spring of 2011 and got engaged in February 2014.

Kutcher speaks at the 2013 Teen Choice Awards 2013 at the Gibson Amphitheatre in Universal City, Calif., on Aug. 11, 2013.

Kutcher, center, rings the New York Stock Exchange opening bell on Wall Street on Aug. 6, 2013.

Kutcher stars as Steve Jobs in the 2013 biopic about the Apple co-founder, "Jobs."

Kutcher and model Elle Macpherson present an award during the 69th Annual Golden Globe Awards at the Beverly Hilton Hotel in Beverly Hills, Calif., on Jan. 15, 2012.

Kutcher arrives for the 2012 winter collection fashion show of Colcci during the Sao Paulo Fashion Week in Sao Paulo, Brazil, on Jan. 22, 2012.

Natalie Portman stars as Emma Franklin and Kutcher is Adam Kurtzman in the 2011 romantic comedy "No Strings Attached," about a couple that tries to keep their relationship strictly physical.

Kutcher joined the cast of "Two of a Half Men," alongside stars Jon Cryer, right, and Angus T. Jones, after the departure of Charlie Sheen, on Sept. 19, 2011.

Kutcher and then-wife actress Demi Moore attend a United Nations Office on Drugs and Crime news conference about the launch of the UN Trust Fund for Victims of Human Trafficking, at United Nations headquarters in New York on Nov. 4, 2010.

Kutcher and Moore began dating in 2003 and married on Sept. 24, 2005. The couple split in 2011 and their divorce was finalized on Nov. 27, 2013.

Kutcher voiced a one-antlered deer named Elliot in the 2006 animated film "Open Season."

Kutcher played the role of Evan in the 2004 psychological thriller "The Butterfly Effect."

In the 2003 romantic comedy "Just Married," Kutcher and actress Brittany Murphy play newlyweds who keep having problems on their honeymoon.

Kutcher and Seann William Scott star in the 2000 comedy "Dude, Where's My Car?"

Kutcher, second from left in the back, starred in the coming-of-age comedy "That '70s Show" from 1998-2006 along with Wilmer Valderrama, Danny Masterson, Topher Grace, Laura Prepon, Don Stark, Tanya Roberts, Mila Kunis, Lisa Robin Kelly, Debra Jo Rupp, and Kurtwood Smith.