Everything You Need to Know About the 2015 GRAMMYs

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The 57th GRAMMY Awards are this weekend and we have everything you need to know before tuning in.

NEWS: 2015 GRAMMY Predictions

What Time Are The GRAMMYs On?: The telecast airs Sunday at 8 p.m. ET/PT on CBS.

Who's Hosting?: LL Cool J is hosting for the fourth consecutive year.

Where Can You Watch ET's Coverage?: ET will have all the GRAMMY nominees on the red carpet with a three-hour live show on POP TV Sunday at 5 p.m. ET/ 2 p.m. PT. Go to PopTV.com to find out where to watch.

NEWS: ET's Complete GRAMMY Coverage

Who's Performing?: Kanye West, Paul McCartney, Rihanna, Sia, Ariana Grande, Madonna, Pharrell Williams, Miranda Lambert, Beyonce, Common, John Legend, Mary J. Blige, Sam Smith and Katy Perry are among those expected to hit the stage. There will be 23 musical performances with 35 different acts total.

Who Are the Nominees?: Beyonce, Pharrell Williams, Beck, Drake, Eric Church, Gordon Goodwin, Iggy Azalea, Jack White, Jay Z, Miranda Lambert, Sia, Tom Coyne, Usher and Sam Smith are among the most notable nominees. CLICK HERE for the full list.

Who Are the Forerunners?: Sam Smith is expected to be the big star of the night. He could take home Best New Artist along with Record of the Year and Song of the Year for "Stay With Me."

What's the Difference Between Record of the Year and Song of the Year?: Song of the Year honors the songwriter(s), while Record of the Year honors those who recorded the song (i.e. the artist(s), producer(s), recording engineer(s), and/or mixer(s)).

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