Credit: Instagram

Usher has had plenty of career success, but we think even he would admit that he’s been less successful in the love department. Before his marriage, divorce, and highly publicized custody battle with now ex-wife Tameka Foster, the talented singer had an equally public split from his girlfriend of two years, Rozonda “Chilli” Thomas of TLC, in 2003.

We weren’t so sure if fans would remember which TLC member once accused Ush of committing “the ultimate no-no” during their relationship, but it turns out Viggle users know what’s up! More than 70 percent correctly identified Chilli as Usher’s former love, while 14 percent guessed Tionne “T-Boz” Watkins and nearly 16 percent guessed the late Lisa “Left Eye” Lopes.

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Due to the timing of their breakup, which came shortly before the release of Usher’s album, Confessions, many speculated that “the ultimate no-no” Chilli referred to was infidelity. However, Usher has denied that cheating was the reason they broke up, and Chilli herself recently went on record with Us Weekly to deny that her ex ever cheated on her.

“We broke up because I guess it was that time or whatever," she explained to Us Weekly. "He was that real love for me."

If you’re an expert in celeb relationships, you should put that good knowledge to work on Viggle LIVE! Just download the free app, check in while enjoying your favorite music, movies, and TV shows, and start earning points towards awesome rewards!