Welcome to The Weekend Stream, a relaxing weekly review of notable digital-only catalogue titles. There may be no CD or vinyl, but there’s plenty of great new/old music to discover!  This week, we’ve got long-lost pop from a teenaged star, a crop of country classics, cool West Coast jazz, freestyle hits, and more! Nik Kershaw, B-Sides (iTunes / Amazon) and Extended Versions (iTunes / Amazon) (Island) Island brings two compilations from British singer-songwriter Nik Kershaw to digital services today. B-Sides is just that, collecting nine such cuts from Kershaw while Extended Versions…