Girl Battling Cancer Sings Katy Perry's Roar

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Even though Olivia Wise's struggle with brain cancer has left her unable to stand or take deep breaths, she took her time in the recording studio to record Katy's hit. Check out Katy's response.

Sweet Home Alabama With Tesla Coils

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We've already seen Tesla coils performing Dueling Banjos, but here's another video that takes SCIENCE from Appalachia to the South.

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