Greg Kot is an American music journalist and author. From 1990 until 2020, Kot was the rock music critic at the Chicago Tribune, where he covered popular music and reported on music-related social, political and business issues. Kot co-hosts the radio program Sound Opinions, which introduces itself as "the world's only rock 'n' roll talk show", nationally syndicated through Chicago Public Radio, WBEZ.

James Peter DeRogatis is an American music critic and co-host of Sound Opinions. DeRogatis has written articles for magazines such as Rolling Stone, Spin, Guitar World and Modern Drummer, and for 15 years was the pop music critic for the Chicago Sun-Times.