Whee! See celebrities, including Britney Spears, Sofia Vergara, and Miley Cyrus, having a blast on amusement park roller coasters
Eyes wide shut! The "Work B--ch" singer seemed terrified on a coaster at Six Flags Magic Mountain with friends Dan Dymtrow (left), Lauren Melkus, and her brother Bryan Spears on June 8, 2003.
Credit: Mathew Imaging/FilmMagic