How many members where in the band that won a 2013 award show originally called the "Korea Visual and Records Grand Prize Award"?
BTS (band):  They debuted on June 12, 2013 with the song "No More Dream" from their first album "2 Cool 4 Skool", for which they won several New Artist of the Year awards, including at the 2013 Melon Music Awards and Golden Disc Awards and the 2014 Seoul Music Awards.
i don't know