The actor was not afraid to take off his clothes for his role in the hit 2012 stripper film, and at Beacher's Madhouse club he found himself shedding his shirt yet again, reported Contactmusic.
Pettyfer joined dwarf dancers on stage, one of whom was wearing a furry bear and later also proceeded to smear whipped cream all over his chest and face.
The 'Endless Love' star arranged for his friends from the UK to fly to Sin City to attend the party, where he was given a large cake.