Last year Blac Chyna and rapper Tyga went all out for their son King Cairo's fourth birthday celebration with dueling over the top Ferrari themed birthday parties that even included a ferris wheel and pony rides [click here if you missed that].
This year Blac Chyna and Tyga toned it down a bit...
Instead of two separate parties, Blac Chyna and Tyga held one party together at Six Flags for King and his friends.
