Couchtuner Songland Watch Series Online. Undiscovered songwriters pitch their original creations to superstar recording artists and a panel of chart-topping music producers in hopes of creating the artists’ next megahits. The star artists — including Jonas Brothers, John Legend, Macklemore, Kelsea Ballerini, will.i.am, Old Dominion, OneRepublic, Meghan Trainor, Aloe Blacc, Leona Lewis and Charlie Puth — each choose three songwriters to take their favorite ideas to the next level. Pairing each songwriter with one of the three producers — including three-time Grammy winner Ryan Tedder; Grammy-nominatee Ester Dean, songwriter of hits for Rihanna and Katy Perry; and Grammy-winning country music icon with 38 No.