Glee earned a perfect rating from our critic last night, and as he said in his Glee review, a big reason for that score was one outstanding musical effort after another.

Not just Lady Gaga-related songs, either (though the Lady would be proud). Our Glee music section has been updated with all the cast's electric performances.

Just click on the appropriate iTunes links below and go to it:

• Glee Cast - "Somewhere Only We Know"
• Glee Cast - "I've Gotta Be Me"
• Glee Cast - "I Feel Pretty/Unpretty"
• Glee Cast - "Born This Way"
• Glee Cast - "As If We Never Said Goodbye"

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.