Charlie Amter Bernard “Harv” Harvey is having a fruitful year. The songwriter, producer and bass player is riding high after co-writing and co-producing “Peaches,” the biggest single from Justin Bieber’s “Justice” album (2.6 million song project units moved, according to Alpha Data, and airplay of over 670,000 spins, per Media Base, year-to date), in addition to a turn co-writing/co-producing Skrillex’s “Don’t Go,” which also features Bieber (and Don Toliver).“I had some album cuts before, but I never really had a big hit until ‘Peaches,’” Harv says via Zoom from his newly purchased San Fernando Valley home.To hear the producer tell it, he was surprised the song shot up so quickly.