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09/19/2013 01:07 pm ET

Celebrate Jimmy Fallon's Birthday With 39 Fallon-tastic GIFs

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Jimmy Fallon is turning 39 today, so what better way to celebrate than with 39 Fallon-tastic GIFs?

Whether he's dancing, writing thank you notes, interviewing celebrities or... well, dancing, Fallon's unwavering positive attitude is as infectious as it is entertaining. Scroll down for more than enough "Late Night" GIFs to make you smile today.

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