Glee returns for its fifth season next week, but Demi Lovato doesn’t appear until the following week. The “Heart Attack” singer joins the cast playing a struggling artist named Dani who befriends Rachel (Lea Michele) and Santana (Naya Rivera), specifically the latter. Santana finally gets her groove back and the two become lovers. To prep for their big kissing scene, Demi and Naya did a little homework.

“I made out with her like in my trailer before we shot the scene. So then I just like warmed her up. You know what I’m saying?” Rivera tells Access Hollywood. “She’s awesome and we’re having a blast and we’re so happy to have her.”

Since the two-part premiere features music solely from The Beatles, Demi covers the classic “Here Comes The Sun” with her onscreen girlfriend. The track first appeared on the group’s 1969 iconic album Abbey Road. Their romantic duet is a relatively low-key affair, but it’s fantastic nonetheless. The two ladies’ voices blend surprisingly well together, resulting in some beautiful harmonies. I can’t wait to see the actual performance. Give their duet a listen below.

Demi Lovato & Naya Rivera ‘Here Comes The Sun’