Johnny Nunez, Joe Klamar/AFP/Getty Imges

Host and funny man Wayne Brady introduced the R&B group TLC at their Las Vegas gig this past weekend, but it's what may have happened after the show that's got the internet buzzing.

According to People, Brady, 41, and one of the group's singers, Rozanda "Chilli" Thomas, 42, were spotted holding hands while walking around the MGM Grand following TLC's private concert.

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Us Weekly first reported a budding romance between the "Whose Line Is It Anyway?" star and the R&B singer. An eyewitness told the magazine, "They were so cute, stopping to take pictures with fans. He kept her close to him the whole time."

But Thomas' rep shot down any rumors of a romance, telling ABC News, "Chilli and Wayne are friends, but that is all." Brady's rep declined to comment.

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A regular guest star on "How I Met Your Mother," Brady was married to Diana Lasso for two years until they split in 1995 and has a 10-year-old daughter with second wife Mandi Taketa. Chilli was in a three-year-relationship with Usher until 2004. She also has an 18-year-old son by producer Dallas Austin.