The 17-year-old singer and actress kicked off the annual festivities in a revealing black leotard and leather hotpants while performing her last year's hit Party In The U.S.A. She changed the lyrics from 'a Jay-Z song was on' to a 'JB song was on' as Canadian teen idol Justin Bieber, 16, joined her on stage.
The Hannah Montana star later covered up a litter more in a white tight leotard as she performed her new single Can't Be Tamed, which has been causing controversy in recent weeks due to the raunchy dance moves.
“As a role model to teenagers and with many young fans in the audience of the MuchMusic Awards, perhaps Cyrus's outfits were a tad unsuitable for the family show”, Daily Mail pointed out.
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