Norman "Fatboy Slim" Cook is a DJ whose best tracks ("Praise You," "Rockafeller Skank") always sounded like dusty singles. So this "lost album" by a fictional group — essentially Cook and a crew of vocalists — is a great idea. The beats are dandy, tweaked-up period pieces from Sixties ska to Eighties R&B. But song albums, as opposed to DJ mixes, need good songs. Last year's killer...