Bikini season is officially here! To prove our point, we spotted Olivia Wilde and Candice Swanepoel enjoying the warm weather over Memorial Day weekend - in stylish swimwear, of course. Olivia chose a no-fail black bikini, while Candice opted for something more playful: an itsy-bitsy yellow triangle bikini. Watch today's Fashion Flash for all the celebrity bikini scoop. On Allison: Forever 21 blazer, Stella & Bow necklace.">