Taylor Swift will perform "I Knew You Were Trouble" from Australia on the Grammy Nominations Concert Live! -- Countdown to Music's Biggest Night . Keith Urban is also set to sing with R&B star Miguel on the show, broadcasting live from the Nokia Theatre L.A. Live in Los Angeles Friday night at 10 ET on CBS. LL Cool J returns as host. Katy Perry , Robin Thicke , and "Royals" singer Lorde are also on the bill.
The 56th Annual Grammy Awards will air live January 26, 2014 at 8 p.m. ET on CBS.
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