They both have some of the most famous derrières in the music business.
And for the Fashion Rocks concert on Tuesday night Jennifer Lopez and Nicki Minaj pulled out all the stops when it came to daring fashion and racy dancing.
JLo was wearing a micro metallic dress with matching (and very shiny) lingerie bottoms, which was to be expected considering her latest hit is titled Booty.
She spent most of her performance with her back to the audience as she shaked and danced while singing the aptly named song.
Nicki, 31, also flashed her underwear in a micro skirt as she showed off her cleavage in a sequinned bra with platform boots.
Nicki also sang her own ode glorifying her derrière titled Anaconda, which featured – much like JLo’s hit lyrics – references to her own backside.