Metro

J.Lo’s crying out loud

Love don’t cost a thing — except for a few tears.

Jennifer Lopez cried on stage after finishing a bizarre, sentimental song-and-dance tribute to former flames.

Performing at the Mohegan Sun’s 15th-anniversary party in Connecticut late Saturday night (right), the “American Idol” judge’s eyes welled up with tears after she sang “Until It Beats No More.”

Lopez, 42, belted out the ballad in front of dancers, who included a J.Lo lookalike shaking it with guys who suspiciously resembled former boyfriend Diddy, fiancé Ben Affleck and ex-hubby Cris Judd.

She’s now in the process of divorcing hubby No. 3, Marc Anthony.

The singer isn’t unaware of her romantic ups and downs. During a cameo performance on the comedy “Will & Grace,” Lopez famously joked about herself: “And just remember the secret to a happy marriage is . . . ah, who am I kidding?”

Lopez had been at the Mohegan Sun since Tuesday, preparing for Saturday’s performance.

But if J.Lo displayed any emotion leading up to the show, no one saw it — in part because hotel workers were ordered to look down and avoid eye contact with the Bronx diva, the Hartford Courant reported.