- Her middle name can be spelled 'Ann' or 'Anne'. Both are often used when credited.
- Her nickname is Vitamin C.
- She has been made into a fashion industry fixture with a Tommy Hilfiger lipstick shade (because of her orange hair).
- Colleen's song, Smile, was featured in a Hershey's commercial.
- Mattel made a doll out of her.
- Colleen has brown eyes.
- Colleen graduated from Cedar Ridge High School in New Jersey in the year of 1987.
- Her favorite song to sing is 'Smile'.
- She appeared on Broadway in Passion, Into the Woods, and Company.
- Her trademark is her bright orange hair.
- In December of 2003, she left Electra Records and signed with a new record label, V2.
- In 1999 she signed to a recording deal with Elektra Records.
- She attended classes at Weist-Baron in Manhattan.
- She was voted one of the "Fun and Fearless Females" by Cosmopolitan Magazine in 2000.
- Her natural hair color is black.
- Many people give her the nickname Vitamin C in the honor of the band that she fronted.
- Her biggest hit with the band Vitamin C is "Smile."
- Colleen was 18 when she played Amber in Hairspray.
- Colleen was the lead singer of the 90's band, Vitamin C.
- Colleen played the role "Amber Von Tussle" in the 1988 movie, Hairspray.
- Released second album, More, on 21 November 2001.
- Former lead singer of the alternative band Eve's Plum
- Colleen Fitzpatrick: [I have] 'The-girl-next-door-you-think-you-know' attitude. You're going to get something a little different every time you walk across my lawn."