News Fergie Shows Off Her Abs' Definition in a Bikini at the Beach By Isabel Jones Isabel Jones Instagram Twitter Isabel is an Oregon-born and Brooklyn-based writer and editor with a special interest in pop culture. InStyle's editorial guidelines Updated on August 1, 2017 @ 04:30PM Pin Share Tweet Email When she comes to the beach, step aside! Fergie hit the shores of Hawaii's Kauai on Friday, flashing a confident smile as she showed off her impressive figure in a brown bikini (shop a similar look here), a hip-hugging body chain and pair of round-lens shades accessorizing her swim style. The duchess of pop, 42, has clearly been up in the gym, working on her fitness—the mother of one looks incredible in her skimpy suit and so very happy to be logging some vacation hours (can't say we blame her!). LMNO/Backgrid The hard-working singer and her husband of eight years, Josh Duhamel, visited Hawaii at the beginning of the New Year, so it's safe to say that Fergie-Ferg is a fan of the island life—and honestly, who isn't? Treat yo' self, girl! Fergie & Josh Duhamel Swear by This Power Smoothie for All-Day Energy It must be said, this hot mama is looking positively Fergalicious!