American singer/songwriter , Katty perry has been named MTV's Artiste of 2011 .Her run of No. 1 singles has earned her the distinction of becoming MTV 's first artist of the year. Katty Perry topped Adele after a spirited discussion among MTV's internal panel of experts, the network said Thursday. Adele's " Rolling in the Deep " was chosen top song of 2011.Runners-up were Nicki Minaj 's "Super Bass" and Rihanna's "We Found Love." Perry's achievement of tying Michael Jackson's "Bad" as the only albums to yield five No. 1 singles was particularly impressive. Along with the title cut, "California Gurls," ''E.T.," ''Firework" and "Last Friday Night" (T.G.I.F.) all topped the charts.