ABC has given a script commitment plus penalty to Duet, a Sliding Doors-esque soap about a 35-year-old pop star who finds herself jumping back and forth between life as a famous icon and an alternate reality where she never left her hometown, got married and had a child and works as a high school music teacher. The Lionsgate TV dramedy comes from writers Austin Winsberg and Alan Zachary and Michael Weiner (Broadway’s First Date). The Tannenbaum Company are producing the project. Visit HollywoodReporter.com for more details…