Trae Patton/Getty Images
Hillary Busis
June 11, 2013 AT 07:00 PM EDT

Next week’s Voice finale really will have something for everyone.

NBC has unveiled two of the season 4 finale’s star attractions: Florida Georgia Line and Nelly, an unlikely duo who will tag-team their summer anthem “Cruise,” and Bruno Mars, who will appear with his Hooligans in a pre-taped performance of “Treasure.” Mars and the gang recorded the song in May, shortly before Mars’ mother died suddenly of a brain aneurysm.

And on Monday, NBC revealed that the reality competition’s closer will feature a diva flamboyant enough to put judge Shakira (and even returning judge Christina Aguilera) to shame: Cher, who’s set to perform a new single. NBC says this will be the Oscar winner’s first live TV performance in over a decade.

The Voice‘s two-hour finale airs June 18 on NBC.

Read more:

‘The Voice’ recap: This Song Is Dedicated To …

CMT Awards: Best and worst of the broadcast

Blake Shelton’s tornado-relief benefit raises $6 million

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