Misc: Short legged long bodied dog?

Questions

Names In Songs: Billy Joel sings the ballad of what cowboy?

Names In Songs: Blues Traveler and Big Head Todd & The Monsters each sing about Brother ____.?

Names In Songs: In what Pearl Jam video does a student shoot his classmates?

Names In Songs: Name the song "Hey ______ you're so fine, you're so fine you blow my mind."?

Names In Songs: What 4-Non Blondes song has the same name as a 70's singer?