Gaga scored four wins at the star-studded event at Belfast's Odyssey Arena, including in the Best Female, Best Song and Best Video categories, as well as Biggest Fan - a brand new award that celebrates artists with the most committed fanbase.
Justin Bieber, Bruno Mars and Thirty Seconds To Mars each won two awards with Bieber taking home the trophies for Best Male and Best Pop. Thirty Seconds To Mars were honored in the Best Alternative category and Best World Stage, while Bruno Mars crowned a brilliant year with victories in the Best Push and Best New categories.
Ecstatic Korean boy band BIGBANG were the surprise winners at the awards, capturing the inaugural Best Worldwide and beating off some of the world's biggest stars in the process. Hip hop maverick Eminem repeated his triumph of 2010 with a win for Best Hip Hop artist, while Katy Perry's captivating live performances were rewarded with Best Live. Linkin Park was a popular choice for Best Rock.
More than 8,000 fans watched the drama unfold at Belfast's Odyssey Arena, as the world's biggest artists delivered spine-tingling live performances including Justin Bieber, David Guetta, Lady Gaga, Bruno Mars, Coldplay, Red Hot Chili Peppers, Jessie J, LMFAO, Snow Patrol and Queen.
In a more reflective moment, Jessie J presented a moving salute to the late Amy Winehouse in the form of a touching video tribute from the singer's devastated fans.
In a first for the MTV EMA, two outside broadcasts were built into the show, with local heroes Snow Patrol rocking more than 15,000 fans at a spectacular outdoor stage built directly in front of the historic City Hall while over at the historic Ulster Hall, 1200 very lucky Red Hot Chili Peppers fans were treated to a rare, intimate performance by the incredibly dynamic stadium rockers.
Rock legends Queen, who were handed the Global Icon award from Katy Perry, closed the show with a triumphant flourish, lifting the roof with a stunning medley of hits from their extraordinary musical career. Queen veterans Brian May and Roger Taylor were joined by flamboyant US Idols star Adam Lambert on vocals for a musical voyage through their greatest hits including 'The Show Must Go On' , 'We Will Rock You' and 'We Are The Champions'.
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