New York: Troubled star Justin Bieber partied with a mystery blonde at the Maxim Big Game Weekend party.
The 19-year-old `Confident` singer`s arrival in the US was delayed at the airport where customs officials searched his private plane for marijuana and held him for five hours of extended questioning - as he currently has two criminal cases pending against him.
But he made it to the Maxim Big Game Weekend party, reported New York Daily News.
Bieber had been turned away from three previous events because he wasn`t 21, before being sneaked into the back entrance of the Maxim event just before 1am.
The singer, who is rumoured to be dating Chantel Jeffries, arrived with an entourage of around 15 people and didn`t leave the party until its very end at 4am.
"Justin invited a blonde girl into his booth. She accepted his invite, stayed with him for the duration of the evening, then eventually left with him," a source said.
Other sources say the singer was in a private booth for around 20 minutes before anybody realised he was at the party.
Security guards kept a watchful eye on the singer - who is in town for the NFL Super Bowl in New Jersey, to make sure he wash `t drinking and stopped partygoers from taking photos with cameras or phones.