Billie Jean was released by Michael Jackson in 1982 as part of Thriller, becoming one of the defining pop songs of the decade and a breakthrough for Jackson as a solo superstar. Its distinctive bassline and restrained production helped it dominate radio and early music television, while Jackson's 1983 Motown 25 performance introduced the moonwalk to a huge television audience. Decades later, the opening remains instantly recognisable in edits, dances and memes, because it signals confidence, mystery and classic pop style in just a few seconds.