As we were eating up the Glee Season 5 premiere last night (September 26) Lea Michele (Rachel), Chris Colfer (Kurt), and Naya Rivera (Santana) were on the show’s set continuing to film scenes for Season 5 and they had some very special guests.

Lea tweeted not one but two photos from the Glee set yesterday, both featuring highly anticipated guest stars Adam Lambert (Starchild) and Demi Lovato (Dani). “On set now with the amazing @ddlovato, adamlambert, @chriscolfer & @NayaRivera! #gleeseason5,” she wrote along with the above photo of the fierce fivesome.

This photo (and the one below) was likely taken while the cast was filming Season 5, Episode 4: "A Katy or a Gaga." Since they’re backed by a band and each in front of a mic stand (Demi even has a guitar in hand!) we’d be willing to guess that they are in the process of filming a pretty intricate musical number. Many sites have speculated that they will even be belting out Katy Perry’s “Roar” in this ep.

Lea was equally psyched about the second photo (at left) which features a similar setup, only this time everyone was hamming it up for the camera. “NYC crew!”, she wrote.

We’ll get to meet Demi’s character Dani — who also happens to be Santana’s new crush! — next week, but Adam’s character, reportedly named Starchild, won’t be introduced until a bit later this season. We love Adam, but since his character is rumored to be Kurt’s rival, we’re not overly eager for his NYC arrival.

Are you psyched to see what Demi and Adam will bring to Glee Season 5, or are you partial to the original crew? Tell us your thoughts below!

Glee airs Thursday nights at 9 p.m. ET on FOX.