Song List -Barney Theme Song (0:00) -If Youre Happy and You Know It (1:41) -Please and Thank You (4:14) -The Barney Bag (6:39) -The Yum Yum Song .br br Barney & Friends Barney & Friends (also referred to as Barney the Friendly Dinosaur or Barney The Purple Dinosaur) Barney And Friends cartoons .br Song List -Barney Theme Song (0:00) -If Youre Happy and You Know It (1:41) -Please and Thank You (4:14) -The Barney Bag (6:39) -The Yum Yum Song .br Episodes from the Fourth Season of Barney & Friends.