Not sure when & where this picture was taken but doubt it probably around 2011 -2012
Just think about it after the name of actor " Philip Lee " got our attention recently!
( A lot of balloons, it's someone's Birthday? Or Philip's birthday?^^ )
So far what we know is Bae Yong Joon and Philip Lee became close friends
since they acted together in drama " Legend " in 2007
And they met again on Philip's Birthday in 2016
Credit : Second Hyororin, thank you!
Credit : park_si_hoo_01, thank you!