With over 45 million albums sold, 1 billion streams, and many No. Marx’s work extends far beyond his own recordings, having written and produced for artists including Luther Vandross, Keith Urban, NSYNC, Barbra Streisand, Ringo Starr and Burt Bacharach. His latest album, “After Hours,” which features appearances by Rod Stewart and Kenny G, debuted at No. 14 on Billboard’s traditional jazz album chart when it was released in January. He also hosts the hit podcast “Stories To Tell,” with guests including Paul Stanley, Rick Springfield and Kenny Loggins.