“Everytime I crazy is because of you.If you're looking right at me because of love.”

　　 温暖的钢琴配上By2的嗓音，只为表现剧中林星辰（张予曦 饰）公主外表之下柔软的内心。 “偶像剧是用来造梦的，音乐是梦的开始……”作为首只公开心动单曲，《BECAUSE OF YOU》可谓是正式开启了《亲爱的，公主病》的萌爱“心”歌，