sang by rachel berry-lea michele
In the episode silly love songs season 2 episode 12
Firework is a song featured in the Valentine's Day episode, Silly Love Songs, and is sung by Rachel Berry. The Glee Club's assignment was to sing a love song to a partner, and Rachel uses Finn as her inspiration after he comes down with mononucleosis and admits to her that when he kissed Quinn, he experienced 'fireworks'. This is the fourth song covered on Glee that is sung by Katy Perry, the other three being I Kissed a Girl in Pilot and again in I Kissed a Girl, Teenage Dream in Never Been Kissed, and California Gurls in The Sue Sylvester Shuffle. It was later sung by the contenders on The Glee Project.
