Kylie Jenner teamed up with the cutest little party planner ever to surprise Tyga for his birthday.
Kylie said King Cairo had been wanting to throw his dad a birthday party, and pulled it off Thursday ... complete with a cake, cupcakes and balloons. The rapper turns 27 on Saturday.
It's a fun clip with Cairo helping dad blow out his candles -- however, we're pretty sure the tyke had nothing to do with the cupcake homage to Kylie's cakes.
Well, we hope not.