In 2014, Armstrong joined the Replacements for a number of shows beginning on April 19 at Coachella. Frontman Paul Westerberg had been suffering with back problems and spent the majority of the gig lying on a sofa while Armstrong helped play his parts. Westerberg referred to Billie Joe as an "expansion of the band". Armstrong joined the Replacements on stage again at the Shaky Knees Music Festival in Atlanta in May.
In 2014 Armstrong joined the Replacements for a number of shows beginning on April 19 at Coachella. Frontman Paul Westerberg had been suffering with back problems and spent the majority of the gig lying on a sofa while Armstrong helped play his parts. Westerberg referred to Billie Joe as an "expansion of the band". Armstrong joined the Replacements on stage again at the Shaky Knees Music Festival in Atlanta in May.