Minka Kelly dyed her hair blonde in April but returned to her brunette roots in May. Credit: John Lamparski/WireImage.com; Michael Kovac/WireImage.com

Minka Kelly's stint as a blonde bombshell was short-lived. One month after celebrity colorist and Meche salon co-owner Tracey Cunningham took the actress from brunette to blonde, Kelly returned to her original shade. She debuted her newly dyed locks during the launch of new home website, Domaine, at the redesigned Aqua Star Pool by Estee Stanley at The Beverly Hilton Hotel on Wednesday, May 22.

Less than a week ago, Kelly praised her colorist's work via Twitter. "Anything is possible with Tracey," the 32-year-old wrote. "She's a hair color genius!"

Kelly made two red carpet appearances as a blonde, stepping out at the Costume Institute Gala May 6 and the FOX presentation post-party May 13. The actress stars in the network's new sci-fi series Almost Human, costarring Karl Urban, Michael Ealy and Lili Taylor. Set in 2048, the show is being executive produced by J.J. Abrams, J.H. Wyman and Bryan Burke.

Tell Us: Do you prefer Minka Kelly as a brunette or a blonde?