"This is gonna be crazy," said Puth
But the singer also revealed that he has been "writing songs lately"
The Korean boyband are reflecting on their first nine years with ‘Proof’, a chapter that’s altered the existences of millions
The track is part of the group's annual "festa" celebrations, marking their anniversary
The biggest boyband in the world wrap up their first nine years together with a stunning tribute to their story so far
“I didn’t know you could ‘Archive’ pictures, I just wanted to make it look nicer”
Following the boyband’s arrival in the United States
"It was just difficult to watch [the fans not cheer]"
The K-pop idol shared that he was listening to Park's 2018 track 'On the Low' last December
He is the fourth member of the boyband to score a solo entry on the chart