We agree with Simon Cowell that there's something decidedly strange about 'American Idol' contestant Siobhan Magnus. Perhaps it's her spacey, slow-talking manner of speech, or her peculiar job as a glass blowing apprentice. Still, there's no denying that Magnus sure can belt out a tune.

Magnus delivered a powerhouse performance of Aretha Franklin's 'Think' on 'American Idol' tonight, hitting a high note that bowled the judges over.

Watch Siobhan's performance after the jump.

We agree with Simon Cowell that there's something decidedly strange about 'American Idol' contestant Siobhan Magnus. Perhaps it's her spacey, slow-talking manner of speech, or her peculiar job as a glass blowing apprentice. Still, there's no denying that Magnus sure can belt out a tune.

Magnus delivered a powerhouse performance of Aretha Franklin's 'Think' on 'American Idol' tonight, hitting a high note that bowled the judges over.

"You were so bold and so fearless, and let me tell you something, it was dope. You slayed it," Randy Jackson said. "I loved it, dude."

Cowell felt compelled to comment on Magnus' odd personality, like he did last week, and thought the performance was uneven until Magnus redeemed it during the song's signature high note at the end. "Once again, you're such a strange person and I mean that as a compliment," he said. "I thought there were parts of the song which were terrible, and then that note was incredible ... You are interesting and very, very talented."

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