On a tangent, that ad was such a terrible missed opportunity.
Here you have scored this exclusive deal with this impossible international crossover genius comedic rapper, and you sell a pretty delicious product, and all you can think of is a 1950s-style cutesy celebrity endorsement format. Ending with a very pre-Don-Draper, wink-and-a-fake-smile, generic-celebrity-worshipping closer "If Psy does it, we all go nuts."
I really liked Gangnam Style the first 30 times, and I enjoy Wonderful's pistachios, but this was perhaps the most unimaginative intersection of the two possible.
I'm scared to even mention the commercial though, in fear that I will go home and be subjected to another 20-30 plays of it :(