Jeff Russo (born August 31, 1969) is a composer, songwriter, guitarist, vocalist and producer, best known as a founding member of American rock band Tonic. He is also a founding member of acoustic rock band Low Stars. Recently he has scored films, TV programs and commercials, including the ABC dramas The Unusuals and My Generation, the NBC drama Crossing Jordan, the USA network show Necessary Roughness, the CBS network show Hostages and currently scores the FX drama Fargo and the Starz drama Power.