One source told Life & Style magazine: 'It was a private suite - the place was packed with people. It was so crowded, you could barely see anything.'
'She was talking to a group of friends. I didn't see her have anything to drink.'
The flame-haired starlet may not have imbibed during her evening of celebration, but she did indulge by changing her outfit several times.'
'She first had on this white dress, then changed into a black top and jeans. But then she changed again into another dress. She came out like five times from the bedroom wearing something different each time.'