May 24, 2016 12:30 AM

Before heating up the stage at the iHeartRadio Summer Pool Party concert, Hailee Steinfeld got in some rest and relaxation in Miami.

On Friday, the singer and actress relaxed poolside with her mom and showed off her toned bod in a two-piece Mary Grace Swim bikini.


On Saturday, Steinfeld hosted the bash at the Fontainebleau Miami Beach with Joe Jonas, who did a cover of TLC’s “No Scrubs” and Drake’s “Hold on We’re Going Home” along with his band DNCE.

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“Joe and I were working with the same team of writers and producers around the same time as we were working on our EPs, and we would see each other when one of us was leaving,” Steinfeld previously told PEOPLE of teaming up with Jonas for their hit “Rock Bottom.”

“It felt like there was a real story told between two people, and that’s exactly what I saw when I would hear this song,” she said.

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