The Canadian popstar also posts the single's artwork, which features bright purple letters of A, T and M.
Justin Bieber is unveiling a new song every Monday at midnight for ten weeks as part of his brand new "Music Mondays" campaign. Bieber has just revealed which song he will release for next Monday, October 14.
He posted an Instagram photo of him standing on a stage, and captioned it, "All That Matters is next on #musicmondays lets go." Bieber has also shared the cover art for the upcoming track. The image features the bright purple letters of A, T and M, standing for "All That Matters".
Last Monday, October 7, Bieber kicked off his "Music Mondays" with his highly-anticipated new track called "Heartbreaker". Fans speculated that the song, which hit No. 1 on iTunes in several countries, was about Bieber's ex-girlfriend Selena Gomez.
"It's a song for people going through a heartbreak - like I was when I wrote it," Bieber explained the meaning behind the song on Instagram earlier this week. "It means so much to me to be able to share what I was, and still am going through, with my fans. I'm very proud of this song and I hope it give my fans some insight into my heart."