Thanks to Fabien.C for his original idea.
Sorry if language mistakes :)
It is about a calendar girl , and she is bored in this big truck.
First pell with effects and a second one with no effects

Lyrics

Perfect girl
I’m your calendar girl
On your sun visor
Perfect girl
I’m in your perfect world
I’m a perfect perfect perfect cover-girl
In your truck
It’s like a road-moovie
I’m your mute pin-up

Perfect girl
I’m your calendar girl
On your sun visor
Perfect girl
I’m your calendar girl
I’m waiting for the perfect boy

Perfect lipstick
In the fifties style
Forever young
Forever young

I can’t cry
Can’t shout
I just can smile
But I’m dreaming of a calendar boy

I am dancing on your windscreen
I’m always on the run