She'll be joined by three other musicians for the performance on Dec. 2.
Celebrities who attended last night's ceremony seemed really confused on dress code--was it prom (looking at you, Jersey Shore cast)? the Oscars? a fancy rave?--but whatever they wore, it was at least entertaining to look at. From the totally tame to the nearly-nude, here's every look from last night's VMA ceremony.
Watch out #Swifties: #Directioners are coming to snatch your title of "Fandom Most Likely to Rabidly Attack on Twitter."