Lady Gaga took to London to perform new singles from her upcoming album “ARTPOP”! She debuted her new hit “Jewels and Drugs” featuring West Coast pioneer Too $hort, King Of The South T.I and the fast flows of Twista, during the iTunes Festival. She surprised the London crowd by bringing out none other than Too $hort and Twista themselves for the performance of the track! Hit the jump to checkout a clip of the Turnt up Performance!