Lady Gaga reigned over the 2011 MTV Europe Music Awards at Odyssey Arena in Belfast, Northern Ireland. The international superstar dominated Sunday’s show, winning four awards including Best Female, Best Song, and Best Video for “Born This Way.” She journeyed to the moon to deliver an out-of-this-world performance of her new single “Marry the Night.”

Two-time winner Justin Bieber spread cheer with his Christmas single “Mistletoe” and “Never Say Never.” Love was in the air as Bruno Mars serenaded the crowd with “Marry You.” And David Guetta was joined by Ludacris and Taio Cruz for “Little Bad Girl.”

“I never got to thank Amy Winehouse for breaking boundaries. She set a new standard for British female artists,” said a teary-eyed Jessie J while introducing a tribute to the late Winehouse. The 23-year-old popstress broke out from a vault for “Price Tag” and filled in for Usher on Guetta’s smash “Without You.”

Other winners included Eminem for Best Hip-Hop, Katy Perry for Best Live, and Bruno Mars for Best Push and Best New.

Check out some of the electrifying EMA performances below.