On Friday, the singer took the stage at the Today Show in New York City as part of its Citi Concert Series.
The actress flaunted her flat stomach while performing a handful of hits for the outdoor set, even though it was raining.
The 20-year-old put on a show for her faithful fans, who braved the gloomy weather to flock to Today Plaza for the summer set.
The brunette let her long locks flow down in large curls past her shoulders while she moved across the stage.
The Pitch Perfect alum performed a four-song set for the audience members, who were all sporting orange ponchos to keep dry.
She performed with the support of several backup dancers donning bright neon ensembles, putting on a colorful, choreographed set.
The celeb rocked out while singing her latest single, Most Girls, and her hit collaboration with Zedd and Grey, Starving.
Ahead of her set for the popular talk show, the Oscar nominee took over the program’s Snapchat story, posing with fans on the Today account.
That’s what we’re to do today,’ she said.