He posted the first 15-second clip of a new song on his Instagram page. The lyrics go something like, "How do our lights become lighter, how do our eyes become brighter, gotta believe in something higher."
While it's unclear what that is all about, the second video clip totally points towards Sel. "When it's raining it's pouring, how do I always end up being the enemy, how do I wake up in the morning and you're not right next to me, how did we throw it all away?" the lyrics read.
Who else could Bieber be referring to there? She can't be mad, though. She was the first one who started the after-breakup song battle when she released "The Heart Wants What It Wants" a few months ago.
Listen to Justin's new tunes below. Think the one is about Sel?