Bruce used the instrumental song 3 times while collecting sign requests and once as a snippet ;

 

 

2012-09-02 Citizens Bank Park, Philadelphia, PA
2009-11-22 HSBC Arena, Buffalo, NY 

 

2009-11-20 1st Mariner Arena, Baltimore, MD  

"Green Onions" is an instrumental composition recorded in 1962 by Booker T. & the M.G.'s. Described as "one of the most popular instrumental rock and soul songs ever".