Held at Greenhouse Nightclub, the event was sponsored by Smirnoff Iced Cake and Nicki, 29, was supposed to make an appearance with Flo Rida and Fabolous – but came too late to get in.
“Nicki turned up to the club with about 25 people at 3:30 in the morning,” the eyewitness exclusively told RadarOnline.com.
“She wanted to celebrate with her fans, but she was denied entry at the door by the police because they said the venue was at capacity and there was nothing they could do to accommodate her.”
“Nicki wasn’t happy about it, so she and her group just left,” the eyewitness said.