Vitamin C

Colleen Ann Fitzpatrick (born July 20, 1972) is an American pop music singer, songwriter, record producer, dancer, and actress better known by her stage name, Vitamin C. Her singles include "Graduation (Friends Forever)", "As Long As You're Loving Me", "The Itch", and her most successful hit the Top 20 Gold certified "Smile". Vitamin C is also the former lead singer of the alternative rock band Eve's Plum. As an actress, she has appeared in the films Hairspray, Get Over It, Da Hip Hop Witch, Scary Movie 2, and Dracula 2000.

source: Wikipedia