微笑百事达里面的主题曲“彩虹的微笑”是根据哪一首外国歌曲改编而来的？

Question

我看了一个节目
是张菲主持的一个综艺节目
邀请了王力宏做嘉宾
他们一起用英文歌唱了一首歌
我就听出来了是“微笑百事达”的曲子
现在呢，我就想找那首英文歌。
知道的朋友告诉下啦！！！

Answer 1

翻唱 Buddy Holly 的《 It's So Easy 》
试听下载：http://mp3.baidu.com/m?f=ms&rn=&tn=baidump3&ct=134217728&word=Buddy+Holly++It%27s+So+Easy&lm=-1

歌词：
It's so easy to fall in love.
It's so easy to fall in love.

People tell me love's for fools.
So, here I go, breaking all the rules.
It seems so easy,
oh so doggone easy,
it seems so easy.
Where you're concerned, my heart has learned.

It's so easy to fall in love.
It's so easy to fall in love.

Look into your heart and see,
what your love book has set apart for me.
It seems so easy,
oh so doggone easy,
it seems so easy.
Where you're concerned, my heart has learned.

Answer 2

翻唱 Buddy Holly 的《 It's So Easy 》
试听下载：http://mp3.baidu.com/m?f=ms&rn=&tn=baidump3&ct=134217728&word=Buddy+Holly++It%27s+So+Easy&lm=-1