Night Ranger is an American rock band that rose to fame during the 1980s with their fusion of hard rock and pop. The band's most notable members include Jack Blades on bass and vocals, Brad Gillis on guitars, and Kelly Keagy on drums and vocals. They are best known for their hit single "Sister Christian," characterized by power ballad style and anthemic choruses. Night Ranger's blend of powerful rock and catchy pop significantly contributed to the defining sound of '80s rock music.