The two crossword solutions for the term ONE-NAMED ROCKER are BONO and STING. BONO is an Irish singer, songwriter, philanthropist, and activist who is best known as the lead vocalist of the rock band U2. STING is an English musician, singer, songwriter, and actor who was the principal songwriter, lead singer, and bassist for the rock band The Police. Both BONO and STING have achieved worldwide fame and success as solo artists.