Who is a chainsmoker?
The Chainsmokers is an American DJ/production duo, I think that is what you are referring to.
I was thinking it's referring to someone who is addicted to smoke, either cigeratte or marijuana
No they are a EDM-POP duo that achieved success with their breakthrough song #selfie.
Fantastic. Do they have any popular song?
Yeah they do, their first number one single on the chart was Closer.
When is their next world tour or live show I would like to attend their gig
I think they are on tour now, they have also won two american music awards.
It means they must be really good. I think it's because i'm so addicted to country music thats why I don't know them but will check them out. Thanks
See I am not a fan of country, one of the chainsmokers actually attended New York University and majored in art history and music!