Stars in Revealing Swimwear: National Bikini Day Trend — photo 1 of 2

In honor of National Bikini Day, Hollywood celebrities put on a real parade of revealing swimwear. Hailey Bieber, Brooks Nader, and other stars shared photos in bold outfits on social media, sparking heated discussions among fans. The trend for unusual bikinis is gaining momentum, and many are wondering if fashionistas have crossed the line.