The Substitute (Glee)
The music performances got mixed feedback from music and television journalist. Anthony Benigno of the Daily News gave "Conjunction Junction" an "A".  He had noticed the "ordinarily" (in a normal way) of the song. Benigno did not give a review for the song because of its short length. He only said "what a glorious ten seconds it is". Benigno and Poniewozik criticized "Forget You" for not having any profanity that was in the original recording. Poniewozik liked Paltrow's "deeper voice". He gave her cover a "A". Benigno liked the original version better. Rolling Stones Erica Futterman believed the "clean version" of the song did not affect its success. She said that it was "charming and sassy". Megan Vick of Billboard called it "the most exciting number (song)" of the episode. Stack gave the song an "A+". He also said it was "one of the most memorable and energetic Glee performance(s) ever, thank in no small part to Paltrow". Green told MTV that we was "flattered" by the cover, mostly because he did not know Paltrow would perform it after he was allowed to be in the audience watching the episode filming. He called her performance "great". He also said that he did not know that she could sing.