Beyonce expected to give "career-defining" VMA performance

Beyonce is expected to steal the show at the MTV Video Music Awards 2014 with a “career-defining” performance.

Last year Miley Cyrus captured the spotlight with her now infamous twerk in a nude latex bikini while touching herself suggestively with a giant foam hand as she joined Robin Thicke for a duet of his hit Blurred Lines.

This year’s ceremony will see Beyonce – who has the most nominations with eight nods – accept the prestigious MTV Michael Jackson Video Vanguard Award.