Lady Gaga will be a guest judge at Fox’ “So You Think You Can Dance” (SYTYCD) Top 8 performance night on Wednesday, July 27, 2011.

The video ad shows a cut from Lady Gaga’s “The Edge of Glory” music video, along with the previous performances of the remaining 8 contestants on the hit TV reality dance competition.

Aside from Lady Gaga, the Tony Award-nominated director-choreographer Rob Marshall will also serve as guest judge, along with regular judges Mary Murphy and executive producer Nigel Lythgoe.

The remaining 8 finalists vying to become America’s Most Favorite Dancer are Caitlynn, Jordan, Jess, Melanie, Sasha, Ricky, and Filipino Americans Tadd Gadduang and Marko Germar.

Some past seasons’ contestants will also return on the show on Wednesday to dance with the top 8 finalists.

The results will be announced on Thursday, July 28.