26 days ago 
Charlie Puth expressed amazement at Ha Sung Woon's outstanding performance.
On October 19, Charlie Puth retweeted a video of "We Don't Talk Anymore" dance performance by Ha Sung Woon. The K-pop star prepared the special performance for Wanna One's concert.
— CHARLIE PUTH (@charlieputh) October 19, 2018
In reaction to the performance, the American singer-songwriter expressed amazement with the comment, "WOW."
Fans are loving Charlie Puth's acknowledgment for Ha Sung Woon.
It's Ha Sung Woon of Wanna One. Wish I could see you two work together someday I love your songs and they're even better with SungWoon's wonderful performance#HaSungWoon #WANNAONE #하성운 #워너원 pic.twitter.com/bdw8zUlG9j
— 사랑꾼卒요 (@lets_cloud_on) October 19, 2018
This is his performance in Chicago. He performed for three months to fans all over the world, everywhere was the most enthusiastic. We are happy to share this joy with you. I look forward to your concert in Korea too. Thank u pic.twitter.com/HpCpNXm5Of
— 복이 (@_goorooroo) October 19, 2018
again, his original position is the main vocal. I think he and you can make unlimited collaborations. pic.twitter.com/C2ry1TVhC2
— 복이 (@_goorooroo) October 19, 2018
Meanwhile, Wanna One is gearing up for their final comeback in November.
-1
now that he knows he can't use bts for clout he's moving on to leech from somewhere else.... sad
4
That’s not fair. Music is universal, western artist collabing with kpop artist just spreads more awareness all around
3
He doesnt need anyone from kpop for clout. He's just being appreciative of a performance if his song.
0
Perhaps you don't know who this is... He is part of one of the biggest boy bands right now that Korea put together... He doesn't need BTS or Charlie to get famous because he already is... and you cant seriously reference his friendship with BTS as using them... These boys were friends long before any of them made it big... Their friendship was always there... Just because its in the limelight now doesn't mean its a facade to get more popular...