Justin Bieber Parties With "Tons" of Girls at Mansion Nightclub in Miami

"Justin just sat there chilling, relaxing and texting. He seemed in good spirits and was enjoying the music," an eyewitness tells E! News

Justin Bieber had quite a night.

After watching the Heat face-off against the Indiana Pacers last night for game 7 of the playoffs, the young pop singer decided to celebrate Miami's big win with a long night out at one of the city's hot spots.

E! News learns that Biebs arrived at Mansion nightclub at around 3:45 a.m. with a large entourage (three SUVs full of friends and girls, to be exact).

After switching out his Miami Heat hat to a red snapback, J.B. sat at the VIP table in the club and sipped on some Evian water.
 
"There were tons of girls around him," an eyewitness tells E! News. "Some of them came in the SUVs."

The source added, "Justin just sat there chilling, relaxing and texting. He seemed in good spirits and was enjoying the music."
 
Justin's friend Lil' Twist accompanied the singer, and Flo Rida performed on stage for the nightclub's Hot Excess Mondays hip-hop party.

Biebs and his friends partied for about an hour until the club closed at 5 a.m.