Justin Timberlake showed his generous side while partying in Vegas last night. He made a surprise appearance at Lavo in the Palazzo, and treated every single person in the club to a free shot of 901 tequila, which he created!

Justin named the liquor after the area code in his hometown of Memphis, Tennessee. JT told the crowd around 1AM, "This is a very special evening. Me and my buddy started a homegrown tequila down in Mexico and I wanted to make sure you guys got a taste, so I bought everyone in the bar a shot."

The bar patrons, including Jessica Biel, raised their shot glasses to the toast as Justin said, "We should all believe in something and I believe it's time for another shot of tequila."

Is there anything this guy can’t do?? He’s taking over the world! Next thing we know Justin will be running for president!