Just in case anyone needed a reminder, the American Idol judges can still SLAY on stage!
On Wednesday night's Idol finale, Jennifer Lopez took to the stage with Keith Urban and Harry Connick Jr. for an epic performance — showing the contestants how it's really done!
J.Lo showed off her voice and slowed it down, singing Rihanna's Diamonds — appropriately decked out in a jeweled dress that complimented her curves!
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But the performance didn't end there! The 45-year-old joined her fellow judges to perform Bruno Mars' Locked Out Of Heaven (above)! The trio really did sound great jamming together, and even got Urban's wife Nicole Kidman bopping her head in the audience!
Also in the finale was the debut of ex-Idol judge Steven Tyler's new country song Love is Your Name!
The Aerosmith lead was joined on stage by top three contestant Jax, who held her own performing Janis Joplin's Piece Of My Heart with the rock legend!
Watch the killer duet (below)!