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KISS helped "American Idol's" newest winner close out the show's 13th season Thursday night.  Before the big announcement, KISS teamed up with Caleb Johnson for a medley that included "Shout It Out Loud." 

The pairing was also a treat for Caleb's brother, Houston.  After the performance, "Idol" host Ryan Seacrest introduced Houston as one of KISS' biggest fans, and he took the stage decked out in Paul Stanley's "Starchild" makeup. 

It was KISS' second time participating in an "American Idol" finale.  The band performed on the season eight finale with then-finalist Adam Lambert, who finished in second place behind winner Kris Allen. 

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