It looks like little Mason Disick is going to be celebrating his birthday in a big way!
With a little help, of course.
It turns out Mason's grandparents, Kris and Bruce Jenner, will be hosting a lavish shindig in the kid's honor at their Hidden Hills, Calif., home on Saturday...with more than 100 of his closest friends and family members in attendance!
We've also been told that grandma has some "surprises" in store for Mason, but we won't divulge any of them here so as not to ruin them for the little guy.
You know, in case he happens to be surfing the 'net.