Christina Aguilera will again sing her 2001 hit song “Lady Marmalade” to back up Hayden Panettiere on “Lip Sync Battle.”

Panettiere will face Eva Longoria on the popular TV show on Spike on Feb. 11. Aguilera will provide some live vocals to help the former, which obviously gives her an advantage.

“Lip Sync Battle” is a reality musical contest where celebrities are pitted against each other through creative lip sync performances that attempt to imitate the original version.

In the teaser video featured below, the “Heroes” star initially copied Aguilera in her old music video by wearing a tight red corset, red high boots, red gloves, sparkling tiara and wild blonde wig. She was lip syncing and dancing to the lively tune as done by singers Pink, Mya and Lil’ Kim. Shortly after, the real Aguilera appeared with a huge black feather fan and an all-black outfit to belt out some lines from the “Moulin Rouge” soundtrack. Chrissy Teigen and even Eva Longoria were obviously excited with her surprise appearance.

According to TV Line, even before Aguilera appeared, Panettiere seemed to be doing fine in her performance. The segment was reportedly taped before Oct. 13, 2015, when Panettiere was admitted to treat her postpartum depression.

ET Online noted that Panettiere’s involvement in the show apparently shows that she is in a better state after struggling with postpartum depression. At the Critics’ Choice Awards, the “Nashville” actress shared that she has been surrounded by love.

“I’ve gotten an incredible amount of support and I was actually really surprised cause I feel like I grew up in this industry that, in my mind, was very judgmental,” she said.

Fox News Latino also wrote that Aguilera is the latest star to make a cameo appearance on “Lip Sync Battle.” Previously, Beyonce also joined Channing Tatum onstage to bust some moves after the latter lip synced her hit “Run the World (Girls).” Fans of “Nashville” will also discover that the performance is a reunion between the two “Nashville” actresses. Panettiere played Juliette Barnes while Aguilera played Jade St. John on the ABC drama series. The show is currently on its fourth season.

The footage did not reveal Longoria’s song number, but she is expected to put up a fight against the huge number by Panettiere. Longoria will most likely have a celebrity backing her up during the full episode on Feb. 11.

More updates and details on the “Lip Sync Battle” with Hayden Panettiere, Eva Longoria and Christina Aguilera are expected soon.