Day two of the 2013 Ultimate Classic Rock Bowl features a battle of brains versus brawn, as space rock pioneers Pink Floyd get in the ring with the mighty Metallica. Over the next month, 16 of rock’s biggest bands will square off against each other in a series of single-elimination matches to determine who rules all.

Pink Floyd merged sophisticated musicianship and production techniques with genre-expanding, album-length lyrical concepts to create landmark albums such as 'Wish You Were Here,' 'The Wall' and the landmark 'The Dark Side of the Moon.' Metallica turned the musical world on its ear with albums like 'Master of Puppets' and 1991's self-titled "Black Album" and have been the most enduringly popular rock band for the last two decades.

So which one gets to move on? That's up to you, and your vote, which you can make as often as once every hour below. The polls for all eight first round matches close on Sunday, Jan. 13 at 11:59 PM ET. The 2013 Ultimate Classic Rock Bowl winner will be announced Feb. 4 — the day after Super Bowl XLVII.

FIND OUT WHO WINS THE 2013 UCR BOWL

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