Back in October, the world was briefly enamored with a viral video featuring the Japanese comedian Daimaou Kosaka performing as the fictional songwriter Piko-Taro. The nonsensical “Pen-Pineapple-Apple-Pen” became a sensation, becoming the shortest song to chart on the Billboard Hot 100, and beloved enough to justify the creation of a full-length single. Much of the credit (blame?) for the song’s popularity goes to Justin Bieber, who endorsed “PPAP” as his “favorite video on the internet” on Twitter.

Now that whole saga comes full circle, as newly leaked behind-the-scenes footage from a commercial for Japanese company SoftBank shows the pop star finally meeting up with Kosaka in person. On top of the two former YouTube sensations fawning over one another in front of a full classroom, the video shows Bieber greeting students, speaking Japanese, and dabbing. You can watch him and Kosaka stick imaginary pens into imaginary fruit together below.