HOME Justin Bieber enlists 55 celebrity friends for 'What Do You Mean" promotion Agosto 31 of 2015 - 07:00 EDT by HOLA USA! Galería: 56 Fotos 1/56 Justin Bieber is back! The 21-year-old pop star debuted his latest single 'What Do You Mean" on Friday morning and will be performing it for the first time at the MTV Video Music Awards. He will then close out NBC's Today Toyota concert series in September. To help announce is return, Justin enlisted some of his friends in Hollywood to help out with the 30 day countdown — 55 to be exact. Photo: Instagram/@justinbieber 2/56 30 Days: Justin announced the songs title during his appearance on On Air with Ryan Seacrest. Photo: Instagram/@justinbieber 3/56 29 Days: Ruby Rose Photo: Instagram/@justinbieber Prev1/19Next More about: Photo Galleries Justin Bieber Mariah Carey Luke Bryan Britney Spears