Rachel Berry (Lea Michele) sings taking chances
Episode 4
Well, the most well known was by ABBA but the brand new one that only came out yesterday as by JLS
The whole glee club sings Push It in season 1 episode 2, Showmance.
The song Artie sings is Dancing With Myself
Sam sings Baby in the episode "Comeback".
Gwyneth Paltrow
Entitled "End Credits" (Made Famous by Glee Cast)
Jill Scott sings this classic. It has been also be redone by Glee.
Kristin Chenoweth
Vocal Adrenaline
Laryngitis!
Christina Perri is never on glee however rachel berry sings it in the prom episode