"Question" is a 1970 single by the English progressive rock band The Moody Blues. It was written by guitarist Justin Hayward, who provides lead vocals. "Question" was first released as a single in April 1970 and remains their second highest charting song, reaching number two and staying on the chart for 12 weeks. It was later featured as the lead track on the 1970 album A Question of Balance. The single also features the song "Candle of Life" on its B-side, which was from the Moody Blues previous album To Our Children's Children's Children.