Gwen Stefani: Oct. 3
Libras' love of looking good can get a bad rap (see: Kim Kardashian), but because the sign is also very self-aware and has no problem owning up to weaknesses, one of the poster girls for this trait is Gwen, who has continually been honest about her love of beauty. "I mean, I'm very vain. That would be my middle name. Of course I am, you know what I mean? I love the visual," she told Elle in 2011.