 On 2011's "WZRD" and 2015's "Speedin' Bullet 2 Heaven", Cudi incorporated the use of screamed vocals, and can be heard yodeling on his 2016 album "Passion, Pain & Demon Slayin'".Throughout the years he has also incorporated elements of psychedelia, R&B, electronica, synthpop and grunge, in his music.Kid Cudi's earliest influences include alternative hip hop groups such as The Pharcyde, A Tribe Called Quest and Bone Thugs-n-Harmony.