I didn't want to be here
at a wedding alone
He's my best friend from high school
So I felt like I had to go
When the band started playing
Something soft and slow
You stepped out of the shadows
Like a star in a Broadway show
Didn't even ask you to dance
Just took your hand
And led you right out on the dance floor
And when the music stops And you don't let go
Oh, that's when you know
When you know you know
When you know you know
You said I knew you in high school
But I've changed a lot since then
I was very shy and skinny Never had a real boyfriend
I wore glasses and braces Now I just wear a smile
I wanted you since 9th grade
It just took a while
Didn't even ask you to dance
Just took your hand
And led you right out on the dance floor And when the music stops
And you don't let go Oh, that's when you know
When you know you know Didn't even ask you to dance
Just took your hand
And led you right out on the dance floor
And when the music stops And you don't let go
Oh, that's when you know When you know you know
When you know you know When you know you know
When you know you know