What star of "I Love Lucy" also starred in "DuBarry Was a Lady"?
DuBarry Was a Lady:  The musical was made into a 1943 Technicolor film, "Du Barry Was a Lady", starring Red Skelton, Lucille Ball, and Gene Kelly. Lucille Ball:  She was best known as the star of the self-produced sitcoms "I Love Lucy", "The Lucy–Desi Comedy Hour", "The Lucy Show", "Here's Lucy", and "Life with Lucy".
Lucille Ball