LADY GAGA & JUSTIN BIEBER TOP 2011 MTV EMAs

Katy Perry at 2011 MTV EMAs

Belfast's Odyssey Arena is where it was at last night for the 2011 MTV European Music Awards... and the Americans stole the show! Lady Gaga top home top honours winning Best Female. She also won awards for Best Song and Best Video with her track Born this Way, donning yet another interesting Headpiece from her Haus of Gaga Collection. Gaga also performed a stirring rendition of her new Single, Marry the Night.

Selena Gomez hosted the Event, also performing new Track Hit the Lights, while Boyfriend Justin Bieber even came out to do a festive Medley of Mistletoe and Never Say Never, himself being awarded Best Male.

Despite Gaga dominating, Katy Perry would not leave empty-handed, getting awarded Best Live by Jersey Shore Co-stars JWoww and Snooki.

Other highlights of the evening included Irish Actor David Monahan streaking across the stage naked as Hayden Panettiere introduced Lady Gaga for her performance.

Read more here.

See Gaga perform Marry the Night below:

(Photo credit: Getty Images | Video credit: MTV)