Dr Sir Warrior, born Christogonus Ezebuiro Obinna, was a Nigerian highlife musician and composer. He's considered one of the pioneers of modern highlife music in Nigeria and was the lead vocalist of the famous music group, Oriental Brothers International Band. He released several albums with the band, including "Onyeoma Tochukwu Nna," which became a commercial success in the 1970s. Dr Sir Warrior's music was characterized by its unique blend of Igbo folklore and contemporary rhythms. Sadly, he passed away on June 2, 1999