G-Dragon joins the official list of celebrities supporting Justin Bieber's latest single "What Do You Mean?"

Justin Bieber kicked off the campaign three weeks ago, thirty days ahead of release, with a simple image of a clock containing the countdown days and the question, "What Do You Mean?" Since then he has had a plethora of celebrities from all over the world including singers Mariah Carey, Ariana Grande, and Ed Sheeran, TV and radio personality Ryan Seacrest, and Ellen DeGeneres, among so many others.

Then, on August 22, G-Dragon joined the excitement with his own photo posted on Bieber's official Instagram. In the image, G-Dragon points to a handwritten sign reading, "Justin Bieber. 6 Days. What Do You Mean?" as he charismatically holds the paper between his teeth. Also promoting the six-day countdown were author Tyler Oakley and radio host Elvis Duran.

G-Dragon is not the first Korean celebrity to be featured in the countdown. On August 14, 2NE1's CL also contributed to Justin Bieber's countdown to announce the 14 day mark. Both Bieber and CL are managed by Scooter Braun while CL prepares for her U.S. debut.

As for G-Dragon's involvement, he and Bieber have demonstrated their friendship for a long while, with Bieber expressing his desire to collaborate with the Korean idol. Back in 2013, G-Dragon also joined Bieber on stage for his concert in Seoul.

"What Do You Mean" will be released on August 28 worldwide.