Taylor Swift beatboxes while LL Cool J sings
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Grammys 2013: Nominations concert

The show kicked off with hosts Taylor Swift and LL Cool J switching music genres. Swift beatboxed while LL Cool J sang out “Honky-tonk, here I come.” (Kevin Winter / Getty Images)
Fun. -- nominated for six Grammy Awards, including new artist, song, album and record of the year -- performed its hit “We Are Young” with R&B singer Janelle Monae. (Kevin Winter / Getty Images)
Ne-Yo performed his hit “Let Me Love You,” which began as an R&B ballad and ended as a full-on dance party.  (Kevin Winter / Getty Images)
Wesley Schultz, Neyla Pekarek and Jeremiah Fraites of the Lumineers, nominated for new artist, present the nominees for country solo performance.

Complete list  (Kevin Winter / Getty Images)
Luke Bryan performed his hit “I Don’t Want This Night to End.” (Kevin Winter / Getty Images)
Grammy-nominated Maroon 5 performed “One More Night” and “Moves Like Jagger” off its album “Overexposed,” which is nominated for pop vocal album. (Kevin Winter / Getty Images)
The Band Perry was joined by Dierks Bentley to pay tribute to country legend Johnny Cash. They performed Cash’s “Jackson.”  (Kevin Winter / Getty Images)
Phillip Sweet, Kimberly Roads Schlapman, Jimi Westbrook and Karen Fairchild of Little Big Town announced the new artist category. (Kevin Winter / Getty Images)
Young country star Hunter Hayes sang the nominations for pop vocal album.

Full nominees list: 2013 Grammy nominees (Kevin Winter / Getty Images)
Musicians Chris Young and Sheryl Crow present Grammy nominees for record of the year. (Kevin Winter / Getty Images)
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