Teen pop sensation Justin Bieber is already being accused of acting like a diva - keeping schoolkids waiting over an hour so he could go to McDonalds.

Excited young fans as well as school officials, police officers and the press were eagerly awaiting the 16-year-old star at Long Beach Middle School, in Long Island, New York.

But the teen kept everyone waiting for more than an hour - because he diverted his motorcade to McDonald's for an Egg McMuffin, according to the New York Post.

Bieber had been due at 8.30am last Friday but did not show up until after 10.

However his publicist, Melissa Victor, denied to the Post that he was late.