Britney Gets Buff For Glee

Britney Spears has been hitting the gym overtime lately for her upcoming return to television with a guest-starring role on Glee!

And unlike 18-year-old singer Charice, who got botox to look fresh for her appearance on the show, Britney's forgoing the needle and hitting the gym to get herself camera-ready and we've got to say we're loving the results!

In just a little over a month, Britney went from Frapp to fab, transforming herself into this toned, tanned and taut body we saw yesterday afternoon at the recording studio -- When the pressure's on Britney really pulls through!

And we're not the only ones who can't wait for Brit to appear on the show -- Lea Michele recently revealed that she was "so excited" to have Queen B in the Glee house.

Britney looks amazing and we can't wait to see how it pays off for her on Glee!

Click on the gallery to see more exclusive shots of Brit's summer slim down!