Actually, we're 100% sure which — it's for a movie. Life is better with a little mystery though, right??
Jennifer Lopez was snapped shooting her new movie, The Boy Next Door. She was out running trails looking tight as hell for 44 years old!!
Anyway, those pants look like they were specifically made for her with how they hug that booty! Damn, girl!
Plus those kicks are 'fresh to death' or whatever the kids are saying these days!!
Get that sweat on, J. Lo!!!
[Image via AKM-GSI.]