WATCH: Jennifer Lopez Gets Steamy with Casper Smart on American Idol

What a difference a year makes!

Last season on “American Idol,” Jennifer Lopez took to the stage for a performance with now-estranged husband Marc Anthony.

On Thursday, Lopez strutted her stuff with help from beau Casper Smart.

RELATED – Watch: Jennifer Lopez & Casper Smart Fondle Each Other in “Dance Again” Video

The couple performed a sexy routine to her single, “Dance Again.”

Jennifer Lopez "Dance Again" live on American... by HumanSlinky