Her eponymous debut album, Vitamin C, was released on August 31, 1999, via Elektra Records and Warner Music Group.

It became her second and final Top 40 single on the Hot 100; however, it did reach number 2 on the Australian ARIA Charts and was certified Platinum.

The second single from More, "As Long as You're Loving Me", failed to make the Hot 100, only charting in New Zealand at number 45.

As of 2012, Vitamin C is the Vice President of Music for Nickelodeon under her birth name, Colleen Fitzpatrick, according to The Hollywood Reporter.

In 2016 Fitzpatrick, under the Vitamin C moniker, appeared on the song "Don't You Want Me" by Information Society, on their album Orders of Magnitude.