演唱：林肯公園 - Linkin Park
Iridescent（彩虹光芒）是林肯公園第4部專輯《A Thousand suns》中的12首歌,2011年4月被定為電影《變形金剛3》的主題曲，並將重新拍攝MV。
歌詞：
When you were standing in the wake of devastation
當妳站在災難後的遺跡前
When you were waiting on the edge of the unknown
當妳等待著不可預測的變化
With the cataclysm raining down
此時災難即將瓢潑而至
Insides crying "save me now"
妳的內心哭喊著“拯救我”
You were there impossibly alone
卻無法忽視萬分孤單的處境
Do you feel cold and lost in desperation
是否妳感到冰冷無助？
You build up hope but failure"s all you"ve known
妳滿懷希望但最終充滿絕望
Remember all the sadness and frustration
記住這所有的悲哀和沮喪
And let it go let it go
然後讓時光沖刷掉這些不快
And in the burst of light that blinded every angel
在足以使天使失明的爆裂的強光下
As if the sky had blown the heavens into stars
天空支離，天堂破碎
You felt the gravity of tempered grace falling into empty space
妳發現神的恩賜墜入虛無
No one there to catch you in their arms
沒有人能做妳的保護人
Do you feel cold and lost in desperation
是否妳感到冰冷無助？
You build up hope but failure"s all you"ve known
妳滿懷希望但最終充滿絕望
Remember all the sadness and frustration
記住這所有的悲哀和沮喪
And let it go let it go
然後讓時光沖刷掉這些不快
Let it go
讓這些不快逝去