Neil Patrick Harris sung the higher part of the song.
Gwyneth Paltrow
Lea Michele (Rachel) and Cory Monteith (Finn) sing a duet of No Air on Glee!
The whole glee club sings Push It in season 1 episode 2, Showmance.
The main vocals in Teenage Dream are sung by Darren Criss who plays Blaine on the show. The backing vocals are done by the a cappella groups The Beelzebubs, from Tufts University.
rachel It's not Rachel. It's Kurt and Blaine (Chris Colfer and Darren Criss).
The song Artie sings is Dancing With Myself
Sam sings Baby in the episode "Comeback".
Entitled "End Credits" (Made Famous by Glee Cast)
Jill Scott sings this classic. It has been also be redone by Glee.
Rachel Berry (Lea Michele) sings taking chances
Glee - 2009 Dream On 1-19 is rated/received certificates of: Netherlands:AL
Dream On