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1.
1) when you have a crush on a artist/band/group.

2)A foolish, unreasoning, or extravagant passion or attraction to a musical group, artist, or, song

usually manifested by repeatedly sharing videos/songs, or smiling while listening to their music.
holly crap i totally have a musicrush on that gal from Pomplamoose
by Thatoneguydavid September 22, 2013