The singer confirmed during an appearance on Ellen celebrating his 18th birthday that he will unveil 'Boyfriend' on March 26.
The track, which he co-wrote with Mike Posner, will serve as the first single from his third studio album Believe.
Bieber also revealed that he will be "talking/rapping" on the verses of 'Boyfriend'.
He continued: "Basically I'm talking to this girl [saying] if I was your boyfriend I would never let you go."
The full Ellen interview will air today (March 1) in the US.
Bieber is believed to be working with Ke$ha and Lil Wayne on Believe, which is scheduled for release in the summer.
'Live My Life', his collaboration with Far*East Movement, leaked online last week.
Watch Justin Bieber discuss 'Boyfriend' on Ellen below: