D.A. Wallach is an American musician and business executive. He is the former lead singer of the group Chester French and is currently a solo artist signed by Harvest Records, a subsidiary of Capitol Records. He is the former artist-in-residence at Spotify, a company where he was an early investor. As a business executive, he has invested in and advised several companies that have included SpaceX, Emulate, Synthego, Beam Therapeutics, Glympse Bio, Ligandal and Ripple.