When I was 16 Do you know what you want from M2M used to be my song because the boy that I was in love with was dating another girl, but he used to tell me he loved me.
Not the best time of my life, but the song choice was good ^_^
And with my friends I used to sing: “Du, you know what you want?” LOL
Just pay attention to the lyrics and you’ll know what I’m talking about:

Someone who treats you right
Stay with you day and night
I can tell that’s what you need
I know just what to do
I’ll take good care of you
Baby you can get that from me

I can tell she’s not treating you right
Every time you look at me
So which one will you choose
You look so confused
Tell me the truth
Do you know what you want

Do you know what you want
Do you know what you want
Love’s so hard to find
So make up your mind
Do you know what you want

Oh baby can’t you see
One minute you’re with me
Next one you are all over her

She talks behind your back
You know I’ll stay on track
Something she wouldn’t for sure

How can I help you to make up your mind
Boy you’re running out of time
So which one will you choose
You look so confused
Tell me the truth
Do you know what you want

Do you know what you want
Do you know what you want
Love’s so hard to find
So make up your mind
Do you know what you want

Please call me and say
I am the one
You need in your life
The game that you play
Ain’t no fun
Please answer me now
Gotta know what you want

I can tell she’s not treating you right
Every time you look at me
So which one will you choose
You look so confused
Tell me the truth
Do you know what you want

How can I help you to make up your mind
Boy you’re running out of time
So which one will you choose
You look so confused
Tell me the truth
Do you know what you want

Do you know what you want
Do you know what you want
Love’s so hard to find
So make up your mind
Do you know what you want

I can assure you that I moved over, but I was listening to M2M so I remember this and I needed to confess this silly teenager thing :)