Justin Bieber Releases Moody 'Heartbreaker' Single: Listen

Justin Bieber

Justin Bieber performs at the 2013 Billboard Music Awards in las Vegas.

Justin Bieber's "Music Mondays" release series has kicked off on Monday (Oct. 7) with "Heartbreaker," a contemplative track that the pop superstar has teased since early June.

"Don't tell me I'm a heartbreaker/'Cuz girl, my heart's breaking," Bieber sings on the hook, as chirps of "heartbreaker, heartbreaker" fill the empty spaces around the vocal. A simple acoustic lick and snare taps set the scene for what amounts to Bieber's most direct stab at adult R&B to date, complete with the spoken-word breakdown that one might find on a Boyz II Men song.

"It's a song for people going through a heartbreak -- like I was when I wrote it," Bieber wrote of "Heartbreaker," which alludes to his break-up with Selena Gomez late last year, in the song's iTunes description, which he then posted on Twitter. "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."

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Bieber's "Music Mondays" will feature one new song every week for 10 straight weeks; although "Heartbreaker" has been a confirmed single title since the summer, not much has been revealed of the nine songs to come. The tracks represent Bieber's first stitch of solo material since he released "Believe Acoustic" last January.

"Each week the songs get better," the Biebs posted on Twitter, adding, "maybe u might get lucky with two songs in a week."