Wayne Brady and Rozonda "Chilli" Thomas
Rozanda "Chilli" Thomas is not
dating Wayne Brady, despite what a source told PEOPLE about the pair striking up a romance
, says a rep for the singer.
"They are not dating, they've never dated, they've only ever been friends, that's it," a rep for Thomas tells PEOPLE. "They had dinner together after New Year's because they were on the same show. They are old friends."
The Whose Line Is It Anyway?
comic, 41, and R&B star, 42, were seen together in Las Vegas last weekend, where Brady has an improv show at the Mirage. The pair were seen at the MGM Grand holding hands.
"They've been down this road before, but now the timing is right," the source had told PEOPLE. "They've been friends for a long time, but the romance is a new thing."