This is John G bringing you four new reviews today. We've got a few reviews of bands that could be called supergroups -- The Bomb and Osaka Popstar. What's your favorite supergroup? Why do you think it's often hard for supergroups to live up to their potential? But, then again, when they are good, they are good.

Today's reviews are:

• The Bomb - The Axis of Awesome
• Stiff Little Fingers - Live in London
• The Real Mckenzies/The Isotopes/The Ruthless Ones - Live in Toronto
• Osaka Popstar - Osaka Popstar And The American Legends Of Punk