Glam Metal, also known as Hair Metal, is a sub-genre of heavy metal music that emerged in the 1980s. Its characteristic feature is the combination of heavy guitars with commercial melodies and flamboyant stage designs. Glam metal musicians often had a strong stage presence with long hair, makeup, and impressive costumes. Thematically, the lyrics usually focus on themes such as love, partying, and having fun. Well-known bands of the genre include Mötley Crüe, Poison, and Def Leppard.