Pop star Justin Timberlake, who's known to keep it together in the club, reportedly hit the bottle a little bit too hard while partying in New York City recently.

A tipsy Timberlake reportedly dissed Hollywood actress and Long Island native, Lindsay Lohan, as she attempted to dance with the "Sexy Back" singer at Chelsea hot spot 'Avenue.'

"Usually Justin is pretty in control, but he was acting pretty crazy," a source told Page Six. "He was drinking tequila all night. At one point, he cleared out a little space and started break dancing. He was bumping into people and spilling drinks. It was hilarious."

The source goes on to say that Lohan, who's had her fair share of unflattering headlines, approached Timberlake with the intent of dancing with him, but "he shooed her away."

Timberlake's antics didn't stop there. The 'boozy' star was also spotted nestling up to an unidentified brunette - who, as the source says, most certainly wasn't Jessica Biel - his girlfriend of nearly two years.

Later that night, Lohan reportedly took to her Twitter account to let her followers know what went down at the club, and to seemingly get revenge for being dissed by JT. She at first wrote "where's jb cheater" - most likely referring to Jessical Biel. The following day, Lohan tweeted "Why do people cheat?"

She later backtracked, claiming she didn't penn both messages and instead said her Twitter account had been hacked.

Meanwhile, the owner of the club, Noah Tepperberg, is debunking the claims and says he can prove it by handing over the club's surveillance tape. Tepperberg said he and his partner, Danny, were with Timberlake the entire night and didn't witness any wacky behavior.