Jennifer Lopez freestyle dances to Cardi B for fiance Alex Rodriguez: Watch the video

Who needs a choreographer?

Wearing a sports bra and sweatpants, Jennifer Lopez busted out her best freestyle moves to a remix of Cardi B's "Bodak Yellow" in an Instagram video posted by fiance Alex Rodriguez.

"It's already her party here in the Rocky Mountains," Rodriguez wrote, teasing Lopez's upcoming "It's My Party Tour," which kicks off in June. (You can snag tickets here on Ticketmaster.)

The couple's visit to the mountains comes as "Hustlers" production, which is based in New York City, gets into full swing. Lopez, who's trained for months to master stripper dance moves for the movie, has been on location filming since late March.

And while Lopez is jamming out to Cardi B on her own time, she'll soon be able to call her a colleague: Cardi, herself a real-life former stripper, is also slated to appear in "Hustlers."

Rodriguez and his daughters visited Lopez on set, where they couldn't have looked more cheerful despite recent reports of an alleged cheating scandal.

The two got engaged in early March.