Related Information for Sir Sly Sir Sly is an American indie pop band formed and based in Los Angeles, California. The band is fronted by vocalist Landon Jacobs with instrumentalists Jason Suwito and Hayden Coplen accompanying him. While they originally operated anonymously, the trio gradually built a steady following and managed to top The Hype Machine chart, eventually revealing their identities.Their debut single, "Ghost", was released on March 4, 2013, on the National Anthem and Neon Gold labels followed b.. read more