I love that how Sesame Street manages to keep up with pop culture. Generally speaking it’s primary audience (young children) don’t always get it, but older kids and adults do.
The “Call Me Maybe” meme is becoming slightly old but some of the parodies are either quite good, or just outright amusing. For the unacquainted Carly Rae Jepsen did the original (the end of the video is kinda funny). A bunch of parodies followed including Justin Bieber, Selena, Ashley Tisdale, Jimmy Fallon, Miami Dolphins Cheerleaders (best looking of all the parodies), Tay Zonday (Chocolate Rain guy) and Barack Obama (that took time).
I think my favorite is the above gorilla variant simply because it shows the insanity of it all.