Which singer led Woodstock’s opening act in 1969?

If you're talking Woodstock, it better be about two things: Snoopy's bird friend, or the original music festival from 1969 that has become cultural mythology.

In this case, we're talking about the latter. Pretty much every big name musician from the time ultimately showed up at Woodstock '69 (yep, even Sha Na Na), but somebody had to kick things off — and they did it the right way, damn it.

Do you know who the opening act of Woodstock '69 was?

Click START to answer.