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Gigi Hadid Goes Ham To BF Joe Jonas' New Song

'Ya ya ya ya ah.'

When it comes to DNCE's new song "Cake By The Ocean," Gigi Hadid is already its biggest fan.

On Monday night, the model hung out with Ciara during New York Fashion Week, and they couldn't help but jam out to the funky tune (in the dark, like all end-of-night dance sessions). Of course, Gigi already knows all the words, since boyfriend Joe Jonas fronts the new band and she has probably heard every version of it before it came out last night.

"My night ended like this.... Me and @gigihadid jammin to #CakeByTheOcean," Ciara wrote. "Proud of you @joejonas. Love you friend!"

"Cake By The Ocean" is a funky track, led by a sexy bass line, hand claps, guitar upstrokes and a group-sung chorus -- not to mention those risqué lyrics about confections. It's an infectious tune, and there's no questioning why Ciara and Gigi just had to bust into spontaneous lip-synching.

Listen and try not to feel the groove yourself: