What song is this?
 

so proud to lose you
it's hard to let you go
but you know
I'm proud to lose you to the beautiful unkown
but I'm sure

Single female singer.
Thank you! :)

possibly sugarbabes with "just let it go"
the other lines you listed didn't register on google. what radio station did you hear this on
"He was the one for me
He made me feel alright
Now everything's gone wrong
We where so tight
He ain't the one
So just move on
It's time that you let it go
How can I now forget him
He's the only one

[Bridge]
Don't; don't waste your time
(Don't you waste your time)
There's a good thing waiting for you down the line
(Down the line)
Don't, don't waste your time
(Don't you waste your time)
As soon as you get over him your life will truly shine
(Truly shine)

[Chorus]
Just let it go
There's a good thing waiting for you
Don't you know (Don't you know yeah)
Just let it go
As soon as you get over him you'll find the sweetest friend, oh

Lifetime Original Movie Mom At Sixteen... those are the actual lyrics from the close captions, so those are actual lyrics.

It's Maria Mena's Free.
coutasy of imdb (if this was the same song that was in a commercial.

How did you find it on IMDb?

typed in the movie name, went down to the message boards and so happens that someone had a question regarding a song in a commercial for the movie.
http://www.amazon.com/exec/obidos/tg...glance&s=music
go down and there is a song sample.
(hope its it.