Only january 2019 siiva kids will get this

"only january 2019 siiva kids will get this" is a high quality track exclusive to the album SiIvaGunner's Highest Quality Rips: Volume AI.

Joke
This track opens with "Crab Rave". From 0:22 to 0:30, a chiptune instrument that plays "Meet the Flintstones" (and quotes "Title Theme & Ending" from 0:27 to 0:30) can be heard. At 0:30, clips from Joel's reaction to 7 GRAND DAD are pitch-shifted to "Crab Rave". At 0:45, "Crab Rave" is melody-swapped to "Meet the Flintstones". From 1:01 to 1:16, more clips of Joel are pitch-shifted to "Crab Rave". At 1:19, this sequence repeats for the second section of "Crab Rave", minus the chiptune instrument. At 2:18, Joel clips are once again pitch-shifted to "Crab Rave".

This appears to be an alternative version of "Circus (Terminated Mix) - Five Nights at Freddy's" which follows the structure of "Crab Rave" instead of looping for the purpose of being used as background music.