A while ago at work, a collegue showed me a drumoff between Animal (yes, the maniac from the muppetshow) and Buddy Rich (A famous jazz drummer). While having fun with Koen today I thought of this clip from the muppetshow again and started browsing the Web to see if I could find it. Luckily Google was my friend. The clip, as well as some info on Buddy Rich, can be found here. I guess Koen’s an Animal fan now 
By the way, Koen was an excellent helper today in the kitchen. We made spinach, meatballs, and potatoes today. Koen had a lot of fun tossing the potatoes in the water and throwing away things. He actually ate a bit of the meatballs! Yay, progress