Searching for a blonde singer from the 90s/2000s, likely a teen.

Hello, one day I had a flashback, and the melody of a song I listened to when I was young came back to me. I've been searching for months and I'm starting to despair... Please help me.

The song was playing in the early 2000s, by a young blonde American or English guy, probably a teenager? Unfortunately, I can't hum it for you, but there was "beautiful" or "beautiful girl/song?" at the end of the line. I think it's a love song. Maybe a guitar? Or not, I can't remember.
I know it's very little information, sorry ????