The Number 1's series is a brand-new line of CDs featuring #1 radio hits from the biggest names in music. This collection includes decade compilations as well as individual artist CDs and is being released by Universal Music Enterprises (UMe) in its ground-breaking, environmentally-friendly packaging format. A first for the music industry, the standard package (both sleeve and tray) will be completely paper-recyclable, continuing the company's long-standing commitment to being .