Chris Brown Parties in South Beach, Minus Rihanna
03/01/2009 AT 03:30 PM EST
Among the three-dozen revelers at the Gansevoort South Hotel: rappers Young Jeezy and Plies, NFL football player and Heisman Trophy winner Reggie Bush, and television socialite Khloe Kardashian, sister of Bush's girlfriend, Kim Kardashian.
"Chris Brown was hanging with the group after stepping out of a car with cutie Khloe Kardashian," says an eyewitness. "Then he hung with the group and had a great time enjoying his friends poolside at Plunge, the romantic rooftop bar area of Ganesvoort South."
Brown also spent time at the hotel's cabana section. "He seemed like he was in good spirits and had a fun time on a beautiful and balmy night," says the source.
There was no sign of Rihanna at Plunge.