Lyrics:

You know what I think's really sad?
I know how really sad you are
I'm probably gonna leave real soon
Just wanted to let you know

Before I say au revoir, au revoir
You probably don't even know what that means
Au revoir, au revoir
You probably don't even know what that means

She says that it's French—'I know what it means
You don't have to be so mean
If you wanna leave, why don't you go?'
Right before she walks away
I'm pretty sure I hear her say

'Adios, adios
I bet you think I don't know what that means
Adios, adios
I bet you think I don't know what that means'
Rock and roll, rock and roll
You probably don't understand what I mean
Rock and roll, rock and roll
You probably don't understand what I mean
Au revoir, au revoir
You probably don't understand what I mean
Au revoir, au revoir
You probably don't even know what that means
(Ooh, la la)

She says that it's French
I know what it means
Just thought I should let you know
Before I say au revoir