Justin Timberlake 'Not Romantically Involved With Anyone,' Rep Says
06/02/2011 AT 07:15 PM EDT
Eyebrows were raised when the duo was spotted taking in an off-Broadway performance of Sleep No More on Friday in Manhattan, but a rep for Timberlake, 30, says, "Justin is not romantically involved with anyone."
A source close to Timberlake, who split from Jessica Biel last winter, adds that he and Ashley, 24, "have mutual friends. They were hanging out as a group."
Although Timberlake may indeed be single, an Ashley source says she and the actor are more than just friends.
"I'm not sure if Ashley is serious with Justin or not – they aren't dating but they have hooked up recently," the source tells PEOPLE.
"Ashley is a relationship person, much more than [her sister, Mary-Kate], so we'll see."
Reporting by LESLEY MESSER AND MICHELLE TAN