Miley wore a ruffled white dress for the performance, while Nick rocked out in a button up blue shirt and jeans.
As previously reported on AccessHollywood.com, Miley recently parted ways with her last boyfriend, model and country singer Justin Gaston.
In recent weeks the "Hannah Montana" star has been spotted hanging out with Nick again, but she has so far steered clear of officially confirming the two are back together.
Last year, Miley told Seventeen magazine that when she broke up with Nick in 2007, she "bawled for a month straight." But, she predicted they would stay connected.
"Maybe he'll be my best friend for the rest of my life or maybe I'll end up marrying Nick Jonas!" she previously told the mag.
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