Good Vibrations was one of the easiest, but I really don't know why! Maybe because the title appears so soon after that lyric?

The Bonnie & Clyde lyric drove me crazy for a couple of minutes, so I'd say "The Israelites" was kind of tough.

I think Blonnie got the hardest one right: I didn't even know that "For What It Was Worth" was the title of that wonderful song until recently! (I thought it was something like "Everybody Look What's Goin On")