由天光开始想你是黄厚霖写的词，陈伟霆写的曲，歌名《Love U2》。
《Love U2》收录于专辑《WOW》中，由黄厚霖作词，陈伟霆作曲，歌曲歌词：
谈谈情然后再跳舞 baby
凌晨时仍是在抱抱 let's go
两对眼诚实在细诉 baby
分分钟想向你汇报 let's go
由天光开始想你
眉心黑发对比
连呼吸新鲜空气
也想你 yeah
Now say you love me 2 now say you love me 2
融化我无难度
Now say you love me 2
乱世有我保护
Now say you love me 2 my boo
My one 2 one 2 baby show me how you love it
来爱你 爱你
Baby show me how you want it
My one 2 one 2 show me what you got baby
From the bottom to the top
Let me put you on the spot
My one 2 one 2 baby show me how you love it
来爱你 爱你
Baby show me how you want it
My one 2 one 2 show me what you got baby
From the bottom to the top
Let me put you on the spot
由天光开始想你
眉心黑发对比
连呼吸新鲜空气
也想你 yeah
Now say you love me 2 now say you love me 2
融化我无难度
Now say you love me 2
乱世有我保护
Now say you love me 2 my boo
My one 2 one 2 baby show me how you love it
来爱你 爱你
Baby show me how you want it
My one 2 one 2 show me what you got baby
From the bottom to the top
Let me put you on the spot
My one 2 one 2 baby show me how you love it
来爱你 爱你
Baby show me how you want it
My one 2 one 2 show me what you got baby
From the bottom to the top
Let me put you on the spot
歌曲MV
歌影两线发展的陈伟霆，2011年全新专辑《WOW》以色彩对比的全新形象示人，加上他擅长的跳舞主打歌《Baby Don´t Cry》，令这个夏天更热力迫人。
William首次亲自创作歌曲《Love U2》，MV在跑步机上拍摄，William不停往前跑，寓意爱情是要努力争取才可得到。