Inherently b-side albums are a hodge-podge of songs that really weren't meant to go together, and quite often the songs never made it to any album for good reason. There are about half of the songs on Let's Rock which fall into such a category. The other songs, however, are excellent MXPX songs and I was very surprised to find them on such an album. The quality of those alone make this cd a very smart purchase. I totally recommend this for both MXPX fans as well as new comers.