Sydney Sweeney is steamrolling 2026. The “Euphoria” bombshell popped up smack in the middle of the desert Friday, turning heads and sparking a frenzy at the Stagecoach country music festival in Indio, California, where fans practically swarmed her during a late-day appearance. Sweeney was spotted front and center at rapper BigXthaPlug’s set on the Mustang Stage — but the real show might’ve been happening in the crowd. Sydney Sweeney takes photos with fans before watching rapper BigXthaPlug perform on the Mustang Stage during the Stagecoach Country Music Festival on April 24, 2026. Los Angeles Times via Getty Images Video from the night shows the actress getting absolutely mobbed by young women eager for selfies, screaming and reaching for the rising star as she smiled, posed and soaked in the chaos. The 20-something star has been seemingly everywhere lately — movies, commercials and now music festivals — and fans can’t get enough.…