04/05/2011 01:40 pm ET Updated Jun 05, 2011

Olivia Wilde, Justin Timberlake Dating? Star Tweets Denial

Olivia Wilde, as politely as possible, let the Twitter world know on Monday that she isn't dating... someone.

"Cool it, honeybadgers. We are just friends and have been for years," the "House MD" star tweeted, presumably laying to rest rumors that she and "The Social Network" and pop star were starting a fling.

The statement comes after Wilde and Timberlake were seen out on Saturday night, partying at a bar and, according to some onlookers, cuddling and flirting.

The pair worked together on the 2006 film "Alpha Dog," which may be where they originally met. Both Wilde and Timberlake are newly single; she split from husband Tao Ruspoli in mid-March, while Timberlake broke up with Jessica Biel around the same time.