Demi Lovato will be on the next season of "Glee." She will play the role of the lesbian lover of Naya Rivera's character. However, the lesbian angle is clearly just a role as she was spotted getting real close with rumored flame, Wilmer Valderrama.

The former Disney actress will be featured in a Beatles inspired episode and will be Santana Lopez (cheerleader played by Naya Rivera). The returning "X-Factor" judge will join "Glee" in the season following Cory Montieth's tragic death due to heroin overdose.

Naya Rivera could not contain her excitement: "She's playing my love interest, so I'm very, very excited about that," Rivera told US TV. "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."

Meanwhile, Demi Lovato is keeping any insinuation of extending the role in real life. She was sighted celebrating her 21^st Birthday in Disneyland (her home, of sorts) with friends and her rumored beau, Wilmer Valderrama of "That 70s Show" fame.

According to a source from Hollywood Life: "They did everything you can do at Disney - they enjoyed the parades and they spent a majority of their time in Cars Land and the Tower of Terror areas, which they were really happy with. It was a nice and enjoyable day out. A lot of laughs and a lot of fun were had. It was a good birthday."

The PDA wasn't missed, of course: "They were holding hands and hugging throughout the day, they are very cute together."