The 18-year-old Disney star is a major fan of Spears, which she said is adding to her performance nerves.
She told MTV News, 'We are working on a Britney tribute, which I'm so stoked about, 'cause I love Britney. I was like, 'I have to do it.' I wanna do a mash-up of all her songs and just go for it.
'We're gonna do her hits - Baby One More Time, and then I think we're going to try to incorporate Toxic and that phase. And then we might do some of her recent, new stuff.'
But when it comes down to the dance moves, she vowed to leave them to Britney herself.
'I'm not going to even touch Britney! She's so good. I wouldn't want to butcher it. I'm just going to pay tribute to her! I'm gonna say she's awesome.'