'American Idol': Siobhan Magnus rocks out, goes opera for 'Pirates of Penzance'

siobhan-magnus-video.jpgHappy Birthday to "American Idol" finalist Siobhan Magnus! Check out these videos of her from before "Idol."

First watch Siobhan sing with band Lunar Valve, then check out her performance as Mabel in a high school production of "Pirates of Penzance."

It's amazing to watch her go from rocker chick to opera singer and it's great to see Siobhan's incredible range.

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