Well, yes. Yes they did.
I didn’t watch this when it originally aired, so I had no idea. But since I love Phineas & Ferb (shut up), I tend to catch up eventually.
This morning I watched their latest winter/New Year episode and yes, they went Gangnam Style. I laughed so hard by mother ran over to find out why I was laughing like that so early in the morning. For the record, I’m not really a morning person.
Thankfully, I found it online. That way I can share. Here it is. Happy New Year!