the meaning of logo are :
Jun. K - 3 lines harp means: good deeds and impartiality
Nichkhun - 3 stars means intellect (Someone with 4 dimensions) Symbol of good luck & of someone who stays within his concept
Taecyeon - double swords means fighting through obstacles. Also means the heart of warrior.
Wooyoung - Crown means glory, victory and pride
Junho - three pointed star means peacefulness