Justin Timberlake and Jay-Z perform at the Staples Center during...

Justin Timberlake and Jay-Z perform at the Staples Center during the 55th Grammy Awards in Los Angeles. (Feb. 10, 2013) Credit: Getty Images

Timberlake has always worn his influences on his sleeves and there are shots here that call to mind Michael Jackson's "Rock With You" and the finale owes a little to his hero Donald O'Connor in "Singin' in the Rain." That said, Jay-Z's verse is extra cool -- even seated.

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