I honestly don't know the lyrics at all but the beat is something like
Do Wah Do Wah Do Wah Do Wah Daaay
And I believe the do wahs ramp up each time it's said
Again not the actual lyrics it's just the only thing that comes to mind
Also there may be a part right after where the guy fast talks a line.
Yes a male or group of males sings it.
I'm pretty sure it's 70's or 80's maybe 90's.