NOT SO SILENT NIGHT TICKETS ON-SALE NOW: 12/15 @ South Side Ballroom featuring Fall Out Boy, James Bay, And George Ezra

Watch Live On Letterman Concert Performances From Adele, Katy Perry, Taylor Swift, And Other GRAMMY Winners!

Vote for which of these performances would win a GRAMMY award for Best Live On Letterman Webcast!

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See more GRAMMY posts

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