Happy birthday to one of our favorite pop stars, Katy Perry, who today (Oct. 25) turns 29!

Perry has come a long way since her "Hot 'n Cold" days, and changed quite the impressive number of hair colors, before becoming the "Roar" sensation she is today. In honor of this landmark birthday (the last in her 20s!), we went and found one of her Perry's earliest recorded live shows.

This unplugged concert is from 2001, when 16-year-old Perry -- who then went by her real name, Katy Hudson -- performed for Live From Studio B.

Oh, what a journey it's been, Katy Hudson:

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