J.Lo, Mariah Carey, PitBull & More: A-List Lineup Highlights American Idol Finale!

Thursday's edition of American Idol, the finale, featured enough star-studded appearances to fill the Grammys, and we've got a comprehensive recap of the night right here for you on RadarOnline.com.

Among the biggest names were two divas who've spent time on the show as judges: Mariah Carey sang a medley of her hits Hero, We Belong Together and Beautiful, while Jennifer Lopez and Pitbull teamed up for a steamy rendition of Live It Up.

Keith Urban, who served as a judge this year, took the stage to sing his ballad, Little Bit of Everything.

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The king of viral video, Psy, delivered his new single Gentleman, living up to his typical showmanship and flair.

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And plenty of homegrown talents were on display as well, as Adam Lambert performed a duet of Titanium with Angie Miller.

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Jennifer Hudson and season 12 winner Candice Glover sang Natalie Cole's Inseparable; finalist Amber Holcomb did a duet of Next To Me with Scottish singer Emeli Sandé; the top 10 finalists performed a group number of The Wanted’s Glad You Came; and the top five males sang the Jersey Boys' Let's Hang On (To What We've Got).

Legendary Aretha Franklin appeared on satellite from New York, sending good vibes to both of the finalists, after which the top five females sang a medley of her greatest hits.

The finale also features a moving tribute to outgoing Randy Jackson, with the show since its' 2002 debut, as the last man standing, Ryan Seacrest, mused over the "many great memories" the charismatic judge provided in a dozen season.