Gen Z Pop Stars Made Their Mark in 2021. Beware, Millennial Forebears.. Pop and Rock Music, Rap and Hip-Hop, Rhythm and Blues (Music), Millennial Generation, Generation Z, Bieber, Justin, Drake (Rapper), Howard, Charlton (The Kid Laroi), Lil Nas X (Rapper), Rodrigo, Olivia (2003- ), Swift, Taylor, Bailey, Chloe (1998- ), Two Thousand Twenty One