"Sister Christian" is a power ballad by the American hard rock band Night Ranger. It was released in June 1984 as the second single from their album Midnight Madness. It was ranked number 32 on VH1's 100 Greatest Songs of the 1980s. It was written and sung by the band's drummer, Kelly Keagy, for his sister. It was the band's biggest hit, peaking at number five on the Billboard Hot 100, and staying on the charts for 24 weeks.