In 1991, she joined TLC, replacing founding member Crystal Jones, and was nicknamed "Chilli" by Lisa Lopes so that the group could retain the name TLC.
Since the death of group member Lisa "Left Eye" Lopes in April 2002, Thomas and Tionne "T-Boz" Watkins have occasionally performed as a duo.
In 2009, Thomas and Watkins performed a series of concerts in Asia.
On her show, What Chilli Wants, she would reveal having regretted the decision.
Thomas and Austin continued their relationship, and would later have one son, Tron Austin (born June 2, 1997). Their relationship lasted for two years: they broke up in December 2003, followed by a media frenzy surrounding the personal nature of Usher's fourth album, Confessions.
One insider says Cannon joined Thomas before and after the performance and watched on adoringly as her band performed its ’90s hits, which include “No Scrubs” and “Waterfalls.” A spy claims, If the rumors are true, we wouldn’t be surprised. Nick is currently in the middle of his divorce from Mariah Carey.