We all know that Jennifer Lopez is a classy lady, and she proved it again this weekend when she took the stage to perform with her ex-husband, Marc Anthony, at his concert in NYC on Saturday night.

Always fun sharing the stage w this one... @marcanthony #NoMeAmes #radiocitymusichall #familia

A post shared by Jennifer Lopez (@jlo) on

Lopez and Anthony were married for ten years before splitting up in 2014, but they've remained friends. Their joint performance comes off the heels of J.Lo's split with her most recent beau, Casper Smart.

What could it mean?! Probably nothing. But here's a video to prove how awesome it was: