Popsugar Celebrity Emma Watson Celebrities With Their Siblings | Pictures 80+ Celebrity Siblings, From the Hemsworths to the Cyruses October 23, 2023 by Britt Stephens View On One Page Photo 9 of 88 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 John and Carl Mayer John Mayer has a younger brother named Ben and an older brother named Carl, who has been known to perform on stage with him during concerts. Previous Next Start Slideshow Emma WatsonZac EfronNicole RichieGwyneth PaltrowCelebrity Facts