I love the look of Gigi. It's a rich example of a Vincente Minnelli musical made for the Arthur Freed unit. MGM was like the Emerald City of studios for Hollywood musicals and the Freed unit famously produced some of the studios biggest and brightest musical gems. From the "Minnelli red," as I call it, in set decoration, to the hairstyles by Sydney Guilaroff, to the performances and the score of songs written directly for the film by My Fair Lady's Lerner & Loewe, to the thrilling sound of the MGM orchestra, you can tell this is the quality of classic movie musical that only Vincente Minnelli could deliver.
...and eventually turned her into the glamorous, unrivaled queen of MGM musicals in the 1940s.