有點難找耶，我找了幾個，旋律比較慢的目前就這一個：
La Di Da by Murmurs
http://www.uppercutmusic.com/artist..._da_lyrics.html

(六分鐘以後...)
這個雖然也慢，但是更不像是樓主要找的：
Brown Eyed Girl by Busted
http://tw.youtube.com/watch?v=OQJePW1bERA

也是慢，但我實在不確定：
Girl, Let Me Know by Kawao
http://tw.youtube.com/watch?v=uIaFQObfKww

I Get Around by Krayzie Bone
http://tw.youtube.com/watch?v=i7ntgMullrM

還有幾個都是節奏較輕快的：
Roses Are Red by Aqua
http://tw.youtube.com/watch?v=-Guqhnz4N38

If It's Lovin' That You Want by Rihanna
http://tw.youtube.com/watch?v=P9Kxey_Q34k

Love Today by Mika
http://tw.youtube.com/watch?v=4tcn49zHLt0

Zingy by Ak'sent
http://tw.youtube.com/watch?v=Yrejb3hgaig

Dabbi Doo by Ni-Ni
http://tw.youtube.com/watch?v=vHAiz__PijM

好像全部都不像耶
喔對了，樓主要找的歌是男聲還是女聲呀?

(放棄) Orz