Glee Season 5 spoilers have revealed some original cast have left the dramedy and some new faces will be introduced. Lea Michele and Naya Rivera remain, and the two are obviously excited to start filming again. Both young ladies are active on Twitter, sharing sexy bikini photos with eager followers.

In another Gleek spoiler, it's been revealed that American Idol alum Adam Lambert will be in Glee Season 5. Lea announced the guesting on Twitter, saying she hopes to do a scene with the flamboyant artist.

"Omg so excited that @adamlambert is going to be on #Glee this season! I hope he's with me in NYC! #GleeSeason5," Lea tweeted.

Naya, on the other hand, mentioned Glee Season 5 in her latest tweet. "Super early work morning today. Really good practice for when Glee starts again!"

Lea's Rachel Berry will continue her on-again, off-again love story with Cory Monteith's Finn Hudson. The actor will be back from rehab by the time Glee Season 5 production is under way. Naya's Santana, however, will be moving on from Heather Morris' Brittany. Heather is infanticipating, which explains her final bow on Glee Season 4 finale. At least Heather's character got a nice closure.

Other Glee stars who are not returning in Glee 5 are Dianna Agron (Quinn Fabray), Mark Salling (Puck), Amber Riley (Mercedes) and Harry Shum Jr. (Mike). These Gleek alums might still be seen in an episode or two, but fans are not asked to hope for much.

Lea Michele and Naya Rivera are not shy about their bodies, flaunting their curves without looking indecent for their young fans. It is not likely, however, for their now grown-up characters to do the same in Glee Season 5. Even as many changes are expected in the next Glee season, the characters are expected to remain as little skin as possible, in its sexiest scenes.

Start the slideshow for Lea Michele's and Naya Rivera's steamy bikini photos on Twitter.

More 'Glee' and TV Guide Features:

Glee Season 5 Casting Updates: Finn and Finchel are Back; Quinn, Puck, Mercedes Not Returning? [PHOTOS]
How I Met Your Mother Season 9 Spoilers: Pre-Wedding Jitters to Push Robin to Ask Ted for Another Chance? [PHOTOS]
Castle Season 6 Spoilers (Plenty!) Plus - Stana Katic's Thoughts, New Characters, Cas-kett Wedding and NYPD Replacement? [PHOTOS]

Twitter American Idol