March 1st, 1968 saw the first performance of Joseph and the Amazing Technicolor Dreamcoat at Colet Court School in London. The Head of Music at the school wanted to create an original musical piece for the schoolboys to perform at the end of term concert, and commissioned Tim Rice and Andrew Lloyd Webber to write something.
The result was the first version of Joseph and the Amazing Technicolor Dreamcoat, all of fifteen minutes long.
Soon after, the piece was performed again in a new twenty minute version by the Colet College Choir with an orchestra. Still performed as a concert, Joseph and the Amazing Technicolor Dreamcoat received favourable comments in the press.
The first recording was made in January 1969, further expanded with additional songs and music, "Joseph-mania" was building and schools all over the UK and in America wanted to perform this new work.
In London, Joseph and the Amazing Technicolor Dreamcoat was given further concert performances at St Paulís Cathedral and Central Hall. The huge success of these led to the first fully-staged production of the musical.
The Young Vic Theatre Company presented a new production of Joseph and the Amazing Technicolor Dreamcoat at the 1972 Edinburgh Festival, which then transferred to The Young Vic Theatre and The Roundhouse in London. It was still only forty minutes long and was preceded by a selection of medieval mystery plays.
After further expansion Joseph and the Amazing Technicolor Dreamcoat opened in the West End at the Albery Theatre in 1973. The dialogue-heavy section, "Jacobís Journey", was phased out and more music was added to produce the performing version we see today.