While Sunday night's (April 1) ACM Awards were already boasting some high-energy performers and unpredictable presenters, organizers have just announced more of the acts who'll be on hand to bestow honors upon country music's winners throughout the show. In addition to hip-hop musician and actor LL Cool J and legendary hard rock band KISS, 'The Hunger Games' star (and Miley Cyrus' man) Liam Hemsworth will be among presenters taking the stage at the MGM Grand Garden Arena on the big night.

Country's Zac Brown, Brantley Gilbert, Scotty McCreery, the Band Perry, Sugarland and Thompson Square have also been added to the list of presenters, joining previously announced ACM Top New Artist nominee Hunter Hayes, superstars Lionel Richie and Taylor Swift, actress Beth Behrs ('2 Broke Girls') and 'Entertainment Tonight' co-anchor Nancy O'Dell as presenters.

Performers will include Jason Aldean, the Band Perry, Dierks Bentley, Luke Bryan, Kenny Chesney and Tim McGraw, Eric Church, Sara Evans, Brantley Gilbert, Hunter Hayes, Toby Keith, Lady Antebellum, Miranda Lambert, Martina McBride (with Pat Monahan), Scotty McCreery, Brad Paisley, Lionel Richie, Blake Shelton, Carrie Underwood, Keith Urban, Chris Young and a performance by Rascal Flatts with Steve Martin (a segment which will no doubt include a tribute to banjo player Earl Scruggs, who died Wednesday.) See which other artists will be teaming up on the show and what they plan to perform here.

Also on tap, the Zac Brown Band will be hosting the Second Annual ACM Fan Jam at Mandalay Bay Events Center.

The 47 Annual ACM Awards air live this Sunday (April 1), on CBS beginning at 8:00 PM ET.

Watch the Couple to Be Married During Martina's Performance

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