Finn does a cover of "Jessie's Girl" on the Glee episode "Laryngitis." What did you think of this rendition of such a classic?
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Finn sings "I"ll Stand By You" in this clip. Sorry to say, you can only hear him do so.
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Glee Quotes

Relationships are a lot like flowers. If you find the right seed, put it in good soil, give it water and sunlight, bam. Perfect bud. And then comes winter and the flower dies. But if you tend that garden, spring will come along and that flower will bloom again.

Finn

I had sex with you because you got me drunk on wine coolers and I felt fat that day. But it was a mistake.

Quinn [to Puck]