Star Style: Gwen Stefani

Peek at some of the trend-setting singer's most fashionable moments, selected by PEOPLE style expert Susan Kaufman. By Serena Kappes

HAT OF THE MATTER

"This is a complete performance piece," says PEOPLE style director Susan Kaufman of Stefani's look at the American Music Awards (on Nov. 14, with her entourage of backup dancers). "It's just pure fantasy and costume." And it's the start of another fashion era for the daring singer, 35: "She's out promoting her solo album and she's discovering a new look for it."