AceShowbiz -

Naya Rivera and Demi Lovato bond on the set of "Glee" and it's evident in a picture Rivera has posted on Instagram. In a selfie taken from the show's set, the judge of "The X Factor (US)" puckers her lips as if she's going to kiss Rivera. They wear matching red outfits.

"Fancy. ddlovato #goodside #dantana?" the Santana depicter captions the photo, teasing about the previously revealed romance that will spark between her character and Lovato's. It was the series regular herself who spilled the beans.

"I mean, she's playing my love interest, so I'm very, very excited about that," Rivera recently said. "We get to sing a song together. It's gonna be good. I'm excited to work with her. We're bringing her to the dark side. Well, she comes in in a Beatles episode, so [we're singing] a Beatles song. I'm excited."

Lovato is set to appear in at least six episodes of "Glee" season 5 as Dani, an NYC-based struggling artist friend of Rachel and Santana's. She reportedly will interact with Adam Lambert's character and sing "Here Comes the Sun" with Santana.

The drama musical series will return with its fifth season Thursday, September 26 on FOX. The first two episodes are The Beatles tribute, which will be followed with a Cory Monteith memorial episode set to air on October 10.