Credit: AKM Images; Milton Ventura/Broadimage

She was able to snap back into shape after giving birth to her first child Theodore Hayes MacArthur in December, but it looks like maintaining her long blonde hair was too much work for new mom Ali Larter.

PHOTOS: Adorable Theodore goes out to lunch with Ali

The Perfect Couples star, 35, left the Andy Lecompte Salon in West Hollywood, Calif. on Friday with a dramatically shorter 'do.

Larter cut off several inches, going from a extra-long length and straight style to a bob with wavy layers.