Jamiroquai are an English acid jazz and funk band from London. Formed in 1992, they are fronted by vocalist Jay Kay, and were prominent in the London-based funk and acid jazz movement of the 1990s. They built on their acid jazz sound in their early releases and later drew from rock, disco, electronic and Latin music genres. Lyrically, the group have addressed social and environmental justice. Kay has remained the only constant member through several line-up changes.