Madonna hit the dance floor at PH-D at Dream Downtown Saturday night with a group including her young boyfriend, Brahim Zaibat. The singer - who wore a black trench coat with leather biker cut-off gloves, and a red and black plaid shirt - arrived at midnight with three men, but later, two model-type girls and four boys joined the group. After the group got bigger, 'Madonna seemed to loosen up and started to dance. She looked like she was having a good time,' said a source. They ordered a bottle of vodka and two bottles of Krug Rose, before Madonna left the club before 2 a.m. with Zaibat and her security guard.