Jennifer Lopez really has reinvented herself as a dancefloor diva with a penchant for poppy club bangers. Her latest, Flo Rida-assisted single, 'Goin' In' is just another piece of proof that J. Lo can get people 'On the Floor.' BTW, we're calling them J Flo!

The song, which will appear on the soundtrack to 'Step Up Revolution') the next film in the dance franchise, which hits theaters on July 27), bumps and grinds. It starts out with J. Lo singing in a bit of a higher range than we expect, since, let's face it, she's not a belter. But she gets the job done.

The song escalates, with Lopez cooing "I'm goin' in" while Flo demands, "Put your hands up." They're up, they're up! It's a sexy harmony, thanks to J Flo, one that sets the stage for a blast of dance beats. The song erupts into a full blown club banger. We can just picture J. Lo shaking her bootay with BF Casper Smart as she sings, "Tonight / We can do anything we like."

The tune is synth heavy with lots of shifts in tempos and movements. It's easily one of La Lopez's most dynamic songs, but it is, for the most part, laptop pop (aka lap-pop). She's auto-tuned, but not the point of annoyance.

Flo drops his lyrical science, giving the song an urban touch.

Two minutes in, we're reminded why J. Lo is the new dancefloor diva. The song's energy rises and falls and it's always ready to explode!

J. Lo don't need back up. She's goin' in.

Watch her perform the song on 'American Idol.'

Listen to Jennifer Lopez, 'Goin' In' Feat. Flo Rida