Which of these musicals was the first by Lloyd Webber and Tim Rice to be performed publicly?

"Joseph and the Amazing Technicolor Dreamcoat", a sung-through musical with lyrics by Tim Rice and music by Andrew Lloyd Webber, was based on the character of Joseph from the Bible's Book of Genesis. This was the first Lloyd Webber and Rice musical to be performed publicly; their first collaboration, "The Likes of Us", written in 1965, was not performed until 2005.

"Joseph and the Amazing Technicolor Dreamcoat" is considered a family-friendly retelling of the story of Joseph, with familiar themes and catchy music. It has resulted in numerous stagings. According to the owner of the copyright, the Really Useful Group, by 2008 more than 20,000 schools and amateur theatre groups had staged productions.

This musical had its professional premiere, as a 35-minute musical, at the Haymarket ice rink during the Edinburgh International Festival in 1972. It was also Part Two of "Bible One", a Young Vic Theatre Company production presented by the National Theatre of Great Britain. While still undergoing various modifications and expansions, the musical was produced in the West End in 1973. In 1974, its full modern format was performed at the Haymarket Theatre in Leicester and was also made as a recording that year. The musical was mounted on Broadway in 1982. Several major revivals, national tours, and a 1999 direct-to-video film starring Donny Osmond followed.