Justin Bieber Stars in Delightfully Weird Japanese Ad Following Super Bowl Spot -- Go Behind the Scenes!

The 'Purpose' singer is keeping up on his ad game.

Justin Bieber is keeping up on his ad game!

The Purpose singer followed up his Super Bowl ad spot for T-Mobile with a Japanese ad for Softbank, based on the viral Pikotaro song, "PPAP (Pinapple Pen Apple Pen)." Check out a behind-the-scenes look at the commercial shoot in the clip below.

WATCH: Justin Bieber Stars in New Super Bowl Ad, Shows Off Dance Moves With Rob Gronkowski, Terrell Owens!

We kind of love this, even if we're not totally clear on what's going on. But we do know it has something to do with the viral video hit, which has racked up nearly 45 million views on YouTube.

For reference, here's that song:

MORE: Justin Bieber Cries Onstage in Germany While Singing 'Purpose'

Meanwhile, although he's popping up more behind the scenes, you may be seeing the 22-year-old pop star on your TV proper in the very near future.

Watch the video below to see what ET has learned about Bieber and Kanye West possibly being in attendance at this Sunday's GRAMMY Awards.