Let Me In is a star-studded all-blues set from Johnny Winter, featuring cameos from Dr. John, Albert Collins, and several others. Though the set focuses on blues material, Winters can never leave his rock roots behind — the sheer volume and pile-driving energy of his performances ensures that. For most of the record, his enthusiasm is contagious, but there are a couple of bland, generic exercises that fail to work up a head of steam. But there is a lovely acoustic number called "Blue Mood," which shows Winter trying to stretch a bit by playing jazzy licks. It's a refreshing change of pace.