 The 2-act "Colorado" by Claude Dufresne, billed as an "opérette à grand spectacle" with music by Jacques-Henry Rys and lyrics by , starred the bass Armand Mestral (who alternated with Michel Dens) in the role of Jim Bullit, the tenor Lou Pizzara as Ricardo Diaz, the soprano Claude Chenard as Katharina Sanders, and Maurice Baquet as the little saloon pianist.The show opened on 16 December 1950 and ran for 11 months.It was revived at the theatre beginning on 12 February 1959 with Mestral and Baquet reprising their roles and Bernard Alvi as Ricardo and Andrée Grandjean as Katharina.