In what is bound to be one of the most unforgettable performances of the night, Little Big Town will be joined by Faith Hill for a performance of LBT's latest single "Girl Crush" at the 2015 Billboard Music Awards.

The country superstars join an eclectic list of performers set for the live broadcast, including Van Halen, Kelly Clarkson, Hozier, Nick Jonas, Ed Sheeran and Sam Smith. In addition, other duet pairings include Empire's Jussie Smollett and Bryshere “Yazz” Gray with EstelleFall Out Boy featuring Wiz KhalifaBritney Spears and Iggy Azalea; and Meghan Trainor featuring John Legend.

In spite of some citing "Girl Crush" as controversial, the song recently earned the year's best sales week for a country single so far. Thanks to a huge sales spike following Little Big Town's performance of "Girl Crush" on the 2015 ACM Awards, the reigning ACM Vocal Group of the Year sold more than 97,000 units in the days surrounding the awards show. To date, the song has sold more than 500,000 units, earning a gold certification.

"I think it's really great that we're discussing this," band member Karen Fairchild tells People. We're talking about good songs. The agenda is to get great songs out to the fans, and I think we're accomplishing that."

Jason AldeanLuke Bryan, Florida Georgia Line, Brantley Gilbert, Blake Shelton, Miranda LambertSam Hunt and Garth Brooks are among the list of country nominees at the 2015 Billboard Music Awards.

The 2015 Billboard Music Awards will air live from the MGM Grand Garden Arena in Las Vegas on May 17, at 8PM ET on ABC.

Little Big Town Discuss the First Time They Heard "Girl Crush"

Country's Greatest Love Stories: Little Big Town Members

More From TheBoot