Musicians Pete Wentz and Ashlee Simpson-Wentz attended the 136th Kentucky Derby in eye-catching '40s-era attire.
Jeff Gentner / Getty Images
Mario Lopez showed off girlfriend Courtney Laine Mazza's baby bump on the red carpet.
Jeff Gentner / Getty Images
Johnny Weir arrived in a bold outfit.
Jeff Gentner / Getty Images
Jerry O'Connell and Rebecca Romijn showed up looking sharp and chic.
Jeff Gentner / Getty Images
Erica Harris of Omaha, Neb., wears a Derby hat.
Rob Carr / AP Photo
Katie Nielsen of Reno, Nevada watches the race from the grandstands while keeping out of the rain.
Matthew Stockman / Getty Images
This flamingo-inspired accessory didn't do much to shield this enthusiastic fan from the rain.
Jeff Haynes / Landov
Skip Copnick and Charles Matasich go with rose-themed hats as an ode to the races.
Jamie Squire / Getty Images
A fan wearing an equestrian-themed hat surveys the preliminary races.
John Sommers II / Reuters
A spectator sprints to her seat before the start of the races.
Matt Slocum / AP Photo
