Billie Joe Armstrong made a surprise appearance at the second weekend of the Coachella festival by joining rockers The Replacements onstage. The band, which reunited in 2012 after more than 20 years, was one of the main draws on the Outdoor Stage at the California music event on Friday (18Apr14) and the crowd went wild when they brought out Green Day frontman Armstrong. Dressed in the same plaid suit as the rockers, and he performed on tracks including Color Me Impressed, Can't Hardly Wait and Alex Chilton. Armstrong seemed thrilled to be a temporary member of the group, and told the crowd, "Dreams really do come true!" The Replacements frontman Paul Westerberg had to perform while sat down on a couch during some parts of the set due to a back injury.