'N Sync bandmates Justin Timberlake and Lance Bass has sparked speculation they're feuding, after their frosty behaviour towards each other at a party.
Sources say the N Sync singers avoided each other when they both attended a party a pool party in the Hollywood Hills recently.
An onlooker says, "They didn't acknowledge each other. And they wouldn't go into the pool at the same time."
Another source tells America's In Touch Weekly that the source of the reported feud may be Timberlake's solo success.
The source says, "Lance always thought he was the best singer in the group (and not Justin)."
Lance does so sing. He made *NSYNC because they were more based on harmonies than the Backstreet Boys. That's one thing I always liked about *NSYNC - their abilities to harmonize. Lance did a lot. He just never got solos. And god dammit he was my FAVORITE