While nominees such as Taylor Swift, T.I., Macklemore and Lewis were certainly expected to perform, there will be the added benefits of Pink singing her popular duet (and song of the year nominee) "Just Give Me a Reason" with Nate Ruess from FUN.
Katy Perry will no doubt be Roaring onstage, and Robin Thicke will blur the lines alongside the '70s and '80s band Chicago, whose The Chicago Transit Authority album was inducted into the Grammy Hall of Fame this year.
Perhaps the most exciting performance will be the inaugural Grammy appearance of New Zealander chanteuse Lorde, a nominee for four awards who'll perform her hit "Royals."
Also hotly anticipated is Daft Punk, busting out their disco hit "Get Lucky" (up for two awards) alongside Pharrell Williams, Nile Rodgers and Stevie Wonder.
Kendrick Lamar will also be on hand, performing with Imagine Dragons, and Metallica will take the Grammy stage for the first time in 23 years, playing with Chinese concert pianist Lang Lang.
For the third year in a row, LL Cool J will host the awards show. The 56th annual Grammy Awards air Sunday, Jan. 26, at 8 p.m. ET.
Meanwhile, here are looks at some of the best and most memorable Grammy appearances from the recent past.