Are you ready for the new Gangnam Style, because the internet might just have found it.
If you haven't yet heard of Pen-Pineapple-Apple-Pen (PPAP for short), you soon will, because the bizarre earworm-style music video is gaining popularity fast and even Justin Bieber is a fan.
Days after the music video - created by Japanese comedian Kosaka Daimaou and starring his fictional alter-ego Piko-Taro - Justin tweeted that it was his "favourite video on the internet".
BBC Radio 1´s Nick Grimshaw is also a little bit addicted, although he's not sure if it's a good thing or a bad thing.
In case you're wondering about the lyrics, they are pretty much: "I have a pen. I have an apple. Apple-pen! I have a pen. I have (a) pineapple. Pineapple-pen! Apple-pen. Pineapple-pen. Pen-Pineapple-Apple-Pen."
Since its release a month ago, the video on Piko-Taro's official YouTube channel has been streamed over 9.3 million times, but a video post made on Facebook page 9GAG just days ago has already been seen 59 million times.
No doubt with the likes of Justin and Nick's backing, the catchy and annoying and brilliantly ludicrous video will become even more popular.
How big can a pen, or a pineapple, or an apple pen get, really? Can it be as big as Psy's Gangnam Style?