1. Dear Sergio by Streetlight Manifesto
2. Throw a Bomb by Mustard Plug (classic)
3. Freeze Up - Op. Ivy
Some of the best ska songs ever made are all on Keasbey Nights.
Oh and not sure if this is considered ska by Concrete Jungle and Little Bitch by the Specials. (I guess it is like 2-tone ska.. there are no horns but it still sounds like ska to me)