《When You Believe》是1998年夢工廠動畫片《埃及王子》的主題曲。創作靈感來自于動畫片主角回憶想向上帝祈禱的場景，起初，他們祈禱數夜上帝卻未曾應答，最終卻堅信，只要相信上帝，奇跡就一定會出現，也就是歌詞中的There can be miracles when you believe。
這也是本首歌的主題所在。歌曲的mv在布魯克林音樂學院拍攝，其中的埃及背景和幕布等靈感皆來自于《埃及王子》，凱利和休斯頓的幕后視頻不斷穿插在mv當中，整個mv場面莊重不失典雅，最后以炫目的煙火效果和宏大的合聲達到高潮。凱利和休斯頓的演唱的獨特氣質也完美融合，這成為兩人難得的合作經典。
When You Believe歌詞[中英文版]
Many nights we've prayed 我們祈禱了很多個夜晚;
With no proof anyone could hear 我們祈禱的證據(聲音)沒有人能聽到;
In our hearts a hopeful song 在我們的心中，希望之歌;
We barely understood 我們以前勉強能理解;
Now we are not afraid 現在我們不怕了;
Although we know there's much to fear 雖然我們知道，還有很多可怕的事;
We were moving mountains long 我們一直在移山;
Before we knew we could 早在我們意識到自己有能力之前;
*There can be miracles, when you believe 只要你相信，就會有奇跡;
Though hope is frail, it's hard to kill 希望雖然脆弱，但很難扼殺;
Who knows what miracles you can achieve 誰知道你能創造什么樣的奇跡呢;
When you believe, somehow you will 只要你相信，你就能做到;
You will when you believe* 只要你相信，你就能做到;
In this time of fear 在這個充滿恐懼的時代;
When prayers so often proves in vain 祈禱往往是徒勞的;
Hope seems like the summer birds 希望好似夏天的候鳥;
Too swiftly flown away 很快就飛走了;
Yet now I'm standing here 但是現在我站在這里;
My heart's so full I can't explain 我的心是那么充實，我都無法解釋了;
Seeking faith and speaking words 追尋信仰，并說出;
I never thought I'd say 我從未想過自己會說的話;
Repeat *
They don't always happen when you ask 每當你祈求時，奇跡不總是會發生;
And it's easy to give in to your fear 你很容易向恐懼屈服;
But when you're blinded by your pain 但是，每當你被痛苦蒙住雙眼;
Can't see your way safe through the rain 在雨中看不見前方的路是否安全;
Thought of a still resilient voice 想到一個令人振作的聲音;
Says love is very near 他說，愛近在咫尺.