gdragon and rapper top formed a duo
gdragon later formed a duo with fellow big bang member top to record and release the album gd  top lrb 2010 rrb  which contained the topfive hits  high high    oh yeah   and  knock out  on the gaon digital chart  while the album peaked at numberone
choi seunghyun lrb  born november 4  1987 rrb  better known by his stage name top  is a south korean rapper  singersongwriter  actor  and record producer