The World's Largest Running Party is amplifying the entertainment factor in 2026 as the CELSIUS® Rock 'n' Roll Running Series Las Vegas returns to the Las Vegas Strip and Downtown Las Vegas on Saturday, Feb. 21 and Sunday, Feb. 22. More than a race, the event transforms the city into a high-energy music festival on the move — featuring live DJs, themed performance stages, … [Read more...] about World-Class DJs, Immersive Course Stage Themes and a Downtown Runner’s Party Headline the 2026 World’s Largest Running Party