Taylor Swift performs 'I Knew You Were Trouble' on American Music Awards, HD - Live Performance All AMAs and BBMAs performances are here: https://youtube.com/playlist?list=PLnRTXdk__Bxt14iqHEkmRdkW1kO5XMfU7&si=nvpoXYLfXruqU4_n - AMAs Live Performances - Jessie J, Ariana Grande, Nicki Minaj - Bang Bang (Live on American Music Awards): https://www.youtube.com/watch?v=Oo0nZ5EGoJ0 Taylor Swift - Blank Space (Live on American Music Awards): https://www.youtube.com/watch?v=Ig--r-bahig Nicki Minaj & Skylar Grey - Bed Of Lies (Live on American Music Awards): https://www.youtube.com/watch?v=G96AyHqknYI Ariana Grande & The Weeknd - Problem/Break Free/Love Me Harder (Live on American Music Awards): https://www.youtube.com/watch?v=2VCTsvO_d8s #TaylorSwift #IKnewYouWereTrouble #AMAs #TaylorSwiftLive