Jack Cook is a musician known for his pop sounds reminiscent of the early 1960s. ([marmosetmusic.com](https://www.marmosetmusic.com/artists/jack-cook?utm_source=openai)) His latest release, "It's a Sin / These Days," showcases his ability to blend classic influences with contemporary sensibilities. ([music.apple.com](https://music.apple.com/us/artist/jack-cook/1742626842?utm_source=openai))