I heard this song on the radio earlier, and I know it's a well known classic rock song, but again, I can't put my finger on it. I've tried to pick out the intro on my guitar in the attachment. The riff there is played twice, then he starts singing. Anyone have any guesses as to what the song is?

no idea on this one sorry dude

I figured it out, Fortunate Son by Creedence Clearwater Revival. My attempt was a little off, but thanks anyway.

always love CCR

haha, definitely