October 21, 2015 02:20 PM

Does Derek Hough have a bone to pick with Bindi Irwin?

The Dancing with the Stars front-runner, 17, was spotted working on her tango at the show’s Hollywood dance studio – and she’s apparently swapped out Hough for a skeleton!

Bindi Irwin

With only a few days until show’s Halloween week, was casual from the tip of her ponytail to the toes of her green Converse sneakers as she used the prop to show off the enviable arm extension that’s earned her weeks of perfect 10s from DWTS‘s judges.

Fresh off a memorable Dirty Dancing routine on Monday’s show, the teen has reason to let loose, and allow her goofy side to run free.

After the performance on Monday, which earned her and Hough a standing ovation, her partner told PEOPLE that the dance could have taken a turn – or slip – for the worse.

“We were practicing the lift and Bindi’s dress kept sliding up,” Hough told PEOPLE after the show. “If it came up too high, she would fall down. We ran over to wardrobe, and I said, ‘Please sew the dress to her underwear so it won’t slide up.’ ”

He added, “They were literally cutting the string right as we were running on stage to perform. We were really nervous. But it went great.”

RELATED VIDEO: Bindi Irwin Scores Second Consecutive Perfect 10 on ‘Dancing with the Stars’

Dancing with the Stars airs Mondays (8 p.m. ET) on ABC.

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