I find this math-based version of Katy Perry's "Teenage Dream" hilarious.
When you are adding you are combining things, like these two cookies, or pieces of pie. Now, can you think of any things that we can combine? Let's learn one plus one tonight, no regrets, just math. Hey you know what we should try? You and I, let's add us together. One plus one will always equal two. That is fun, just piling numbers on. I can't stop, it's always adding. Don't ever subtract. You're learning quickly, who knew you could count that high? Keep practising and soon we can multiply. I think you're ready for more numbers to try. Don't be shy! Love the way you make me sum. Always check your work. One and one is really fun, but what if we just keep on adding? You and me, plus one more monster can count to three. And if there's two of you and one of me, let's add it up and divide me in half. On the floor knock out all until it makes me sore, but I still think that we can count to four. If it ever stops cause I am loving this math. You may love morning just with you and me but let's count some more tonight. So much more to dig with my fantasy that we keep adding tonight.