Justin Timberlake surprised an entire Sin City club with free shots last night!
The singer is in town for business at the Magic fashion trade show for his William Rast line, but made time for pleasure, too.
Monday night, he threw a private dinner party at Lavo in the Palazzo where girlfriend Jessica Biel and business partner Trace Ayala were in attendance.
After the group finished eating, J.T. headed into the main club to make an unannounced appearance.
"People were freaking out," a source tells E! News.
At exactly 1:09 a.m., Justin got on the microphone...So what did he have to say?
He announced he was buying everyone in the club a shot of his 901 Silver tequila, named for his hometown Memphis area code.
"We should all believe in something, and I believe it's time for another shot of tequila," he told the crowd before tossing back the shot.
Samantha Ronson was working the turntables that evening, and Justin even treated the club to an impromptu beatboxing performance later in the night.
What a giver!
Now take a look at other entreprenurial celebs in our special Star-Studded Snacks gallery! We promise it's a treat.