Nastia Liukin Gets Ready for Eras Night While Derek Hough Recover - Exclusive 'DWTS' Photo Blog! (Week 7)

Nastia Liukin poses next to fellow competitor Riker Lynch during Dancing With the Stars rehearsals in this pic for her week seven photo blog, exclusively on JustJaredJr.com!

Every week, the 25-year-old Olympic gymnast is taking JJJ along for her adventures on the show! This week, she gives us a behind-the-scenes peek at her Eras Night outfit!

Nastia‘s partner Derek Hough is recovering from a foot injury, so she will be dancing with pro Sasha Farber.

Be sure to watch Nastia on tonight’s Dancing With the Stars � and vote for her using 1-855-234-5604!

Click through the slideshow to check out Nastia‘s fun behind-the-scenes pics for this week’s blog!