‘Glee’ Cast, ‘Firework’

'Silly Love Songs' -- the Valentine's Day episode of 'Glee' -- airs tonight, and with anticipated covers of Queen, Katy Perry and Paul McCartney slated for Season 2, Episode 12, it's bound to be one to get our hearts pumping.

But the most anticipated song of the evening is unarguably Rachel's cover of Katy Perry's 'Firework' -- which, as heard below, is nothing short of dynamite. The ever-spoken star of 'Glee' will spark up the screen with a solo performance of this pop diva cover -- presumably to recapture the heart of her ex, Finn, just in time for V-Day.

Tune in to 'Glee' on FOX in its regular Tuesday time slot to see the glee club set up a kissing booth in the name of love, and to catch this memorable performance of 'Firework'.

'Firework,' as well as the other songs featured on 'Silly Love Songs,' are available on iTunes today.

Listen to 'Glee' Cast, 'Firework'