Ker-pow! The style evolution of Mad Men's Joan Holloway

Call her Joanie, call her Red, call her Ms. Holloway (or, gulp, Mrs. Harris)—Joan has stolen the show on Mad Men pretty much every episode—even Peggy Olsen would agree. And you know what's really cool? While we think of Christina Hendricks's Joan as a classic "bombshell," she rarely exposes more than a collarbone in any of her Mad Men outfits—the lady just sizzles. (The truly devoted can take a closer inspection at Matthew Wiener's Mad Men costume exhibit). So as we look back at our favorite Mad Men moments over the course of seven seasons, let us pay tribute to our favorite room lighter-upper. Ladies and gentlemen, Joan's most glorious looks.