miley cyrus and minnie mouseMiley Cyrus celebrated her 16th birthday last night - six weeks before her actual birthday.

The Hannah Montana star celebrated with rumoured boyfriend Justin Gaston, friends including Demi Lovato at Disneyland, and fans paying $250 a ticket for the concert.

Justin opened the gig, followed by Miley’s dad Billy Ray Cyrus and her older sister Brandi singing Billy Ray’s hit ‘Achy Breaky Heart’ before Miley herself took to the stage.

She told the crowd: “They say it’s the happiest place on Earth … This is the most amazing sweet 16 that a girl could have!”

Justin - who was first romantically linked to long-time friend Miley last month - is said to have watched Miley perform from the side of the stage before the two snuggled up to watch the fireworks finale together.

After the gig came to a close around midnight, Miley told: “It’s been a long night but I’m still ready to party and ride some rides!”

According to Disney, Miley received a surprise birthday present from her parents at the party, a new Maltipoo - half Maltese, half poodle - dog named Sophie. She is said to have asked for a car for her birthday itself on 23rd November.