Jennifer Lopez just scared the pants off Jimmy Fallon.

The "I Luh Ya Papi" singer stopped by "The Tonight Show" on Monday to hit the stage with the late night host, joining him for a "Tight Pants" duet.

In the past, Will Ferrell fought Fallon over tight pants, both wanting the style all to themselves. Lopez brought the same message and rocked the same hairstyle as Ferrell, but she paired her tight pants with a cropped turtleneck.

"I'm the only one who's got my tight pants / I've got my tight pants / I've got my tight pants on / No one else around is wearing tight pants / I've got my tight pants / I've got my tight pants on," Fallon sang.

Lopez danced in his direction, inciting a mini-dance-off. "I can swing my arms / I can shake my hips / I can dance down the block knowing I'm the only chick that's wearing tight pants / and I'm the only one," she retorted.

"You better hide your wife! You better hide your kids! Because I will cut you!" Jennifer said in a growl.

After cooling down, Lopez told Fallon, "What I'm trying to say is get lost, applesauce. I'm the only one who can wear tight pants in this town. You feel me? Don't rattle the cage. We cool-o, papi chulo?"

Jenny from the Block is back!

Check out the video above to see the hilarious "tight pants" battle, and click "Launch Gallery" below to see more photos of J.Lo's sexy style.


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