UPDATE: Foxx told Entertainment Tonight host Nancy O'Dell that the two stars are not together.
"[The rumors] are one hundred percent not true," Foxx said. "In fact, it's quite hilarious because we simply danced at a charity event along with a lot of other people."
Katie Holmes has reportedly moved on from ex-husband Tom Cruise.
Several sources have confirmed that the actress is now dating Jamie Foxx, despite the two stars denying that they had anything more than friendship going on back in August.
“Katie and Jamie have been dating for a while,” an source tells In Touch Weekly, adding that they've been keeping their relationship as secret as possible.
“They’re very 'Mission: Impossible' about their romance,” the source added.
The two stars were spotted out in August at the Apollo in the Hamptons charity party in East Hampton, New York, where they danced together to sings by Pharrell Williams and Daft Punk, but afterward they denied any potential sparks.
"They danced, and after a hug he grabbed her butt and tried to seal the deal," a source told Us Weekly. "She was flattered, but not interested."
Holmes's publicist Leslie Sloane also quashed the rumors, telling PerezHilton.com, "They're not dating. They've been friends for years."
That was two months ago.
A second source tells In Touch that last month the two stayed together at the Trump Soho Hotel while Foxx was in town shooting new movie "Annie", and the morning after his car picked her up and brought her home.
“A hotel employee confirmed that Katie had stayed at the hotel with Jamie and that she was taking his car,” the source said. “So the driver drove her home to her Chelsea apartment.”