Already Gone - Eagles  

Well, I heard some people talkin' just the other day 
And they said you were gonna put me on a shelf 
But let me tell you I got some news for you 
And you'll soon find out it's true 
And then you'll have to eat your lunch all by yourself 

'Cause I'm already gone 
And I'm feelin' strong 
I will sing this vict'ry song, woo, hoo,hoo,woo,hoo,hoo 

The letter that you wrote me made me stop and wonder why 
But I guess you felt like you had to set things right ...