'American Idol' Finale Scoop: Fall Out Boy, Pitbull & NKOTB to Perform

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Joe Trohman, Patrick Stump and Pete Wentz of Fall Out Boy perform at American Express All-Star Live at Hammerstein Ballroom broadcast live on TNT to tip-off NBA All-Star 2015 on Feb. 12, 2015 in New York City. 

Plus, Steven Tyler will perform with Jax & Jamie Foxx will hit the stage too; more details will be announced Wednesday.

On his radio show Tuesday (May 5), Ryan Seacrest announced details about the American Idol season 14 finale, which will mix a cross-section of pop, rock and boy-band nostalgia with an Oscar winner thrown in for good measure.

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So far, the artists announced include Jamie Foxx, Fall Out Boy, Pitbull and NKOTB. Last week, Big Machine's newest artist Steven Tyler approached top four finalist Jax with an on-air proposal to sing together at the finale -- and she accepted.

“I was probably the biggest fangirl in that room, and surprisingly enough I ended up singing with him,” Jax told Billboard of her close encounter with the Aerosmith legend. “I couldn’t even make sentences or move.”

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A spokesperson tells Billboard that more artists will be announced on Wednesday.

The American Idol two-night season finale airs May 12 and 13 on Fox.