Months before skyrocketing to fame on the cast of "Glee," Mark Salling was a tree-hugging bird-loving acoustic-guitar-playing hippie-dippie park squatter -- and we got the footage to prove it!
You see, Mark -- an outspoken bird advocate -- is a member of the Echo Park Ornithology Club in Los Angeles.
And three years ago, right before Mark struck it big on "Glee" -- he expressed his pride in the animal organization by whipping out his guitar at a park meeting ... and jamming out an EPOC theme song he wrote.
You probably wouldn't guess from the lyrics -- but the song's called "Echo Park Ornithology Club."
It's not that bad either ... in fact, it's painfully catchy. You've been warned.
'Glee' Star Mark Salling
PROOF I Was a Bird-Loving
Hippie ... Before I Got Famous
2/10/2012 5:00 AM PST BY TMZ STAFF
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