Light-on-his-feet Aaron Carter has nothing but admiration for his Dancing With the Stars partner Karina Smirnoff.

He calls her "amazing," reveals she's his "backbone" and admits he "wouldn't have been able to get this far without her."

Apparently she's carried not only Aaron, but a multitude of germs, as well.

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Fleet foots to lead foots, check out our gallery of DWTS hoofers!

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