Hear Adams' cover of "Bad Blood."
Neil Young, of course, will also be performing.
Body/Head, The Black Keys' Patrick Carney also performing.
Swift: "I WILL PASS OUT!"
<i>Live At Carnegie Hall</i> due in April.
Singer/songwriter's flight was canceled, leaving Adams to make a last minute change of plans.
Haim, U2, Beck also make this year's nominees, which continue to roll out.
Single also features b-side "Clown Asylum".
Goofy new clip stars Garry Shandling, Jeff Garlin and Bob Mould.