Gallery: Happy Birthday, Mila Kunis

(Photo by David Buchan/Getty Images)

Mila Kunis shines during the Burberry "London in Los Angeles" event at Griffith Observatory. (Photo by David Buchan/Getty Images)

(Photo by Frazer Harrison/Getty Images)

Purple is definitely your color, Mila Kunis.(Photo by Frazer Harrison/Getty Images)

(Photo by Steve Jennings/Getty Images for Breakthrough Prize )

Mila and husband, Ashton Kutcher during the 2018 Breakthrough Prize at NASA Ames Research Center. (Photo by Steve Jennings/Getty Images for Breakthrough Prize )

(Photo by Frazer Harrison/Getty Images for Stagecoach)

What a gorgeous couple! Ashton Kutcher and Mila Kunis cuddled up at Stagecoach. (Photo by Frazer Harrison/Getty Images for Stagecoach)

(Photo by David Livingston/Getty Images)

Mila Kunis at the 50th anniversary celebration for St. Jude Children's Research Hospital (Photo by David Livingston/Getty Images)

(Photo by Andreas Rentz/Getty Images)

A throwback of Mila at the Friends With Benefits red-carpet in Berlin(Photo by Andreas Rentz/Getty Images)

(Photo by Theo Wargo/Getty Images)

Mila Kunis chatting and laughing with Jimmy Fallon. (Photo by Theo Wargo/Getty Images)

Mila Kunis accented all her curves in this sexy off-the-shoulder dress at a "Friends with Benefits" premiere. (Photo by Jemal Countess/Getty Images)

Mila Kunis works a white suit and tee shirt at the Cosmopolitan Magazine's Fun Fearless Males Of 2011 event. (Photo by Jemal Countess/Getty Images)

Love this Alexander McQueen gown that Mila Kunis chose for the 17th Annual Screen Actors Guild Awards. (Photo by Jason Merritt/Getty Images)

It was a beautiful Dolce and Gabbana dress with lace embellishments for Mila Kunis at the premiere Of Walt Disney Pictures' "Oz The Great And Powerful." (Photo by Jason Kempin/Getty Images)

This Gucci halter dress Mila Kunis wore to the 71st Annual Golden Globe Awards is fire. (Photo by Jason Merritt/Getty Images)

Mila Kunis looked fantastic in this Ulla Johnson jumpsuit at a "Bad Moms" premiere. (Photo by Neilson Barnard/Getty Images)

Mila Kunis wears a black and white Louis Vuitton dress for the CinemaCon Big Screen Achievement Awards. (Photo by Ethan Miller/Getty Images)

Werk, Mila. She rocks a Vera wang gown at the 68th Annual Golden Globe Awards. (Photo by Frazer Harrison/Getty Images)

(Photo by Stephen Dunn/Getty Images)

Mila and Ashton Kutcher cheer on the Los Angeles Lakers at the Staples Center. (Photo by Stephen Dunn/Getty Images)

Mila and this grey dress demand attention at the UK film premiere of Oz: The Great and Powerful. (Photo by Ian Gavan/Getty Images)

(Photo by Bryan Bedder/Getty Images for Jim Beam)

Mila Kunis is all smiles at the Jim Beam Bourbon launch event. (Photo by Bryan Bedder/Getty Images for Jim Beam)