Happy birthday, old pal.Wishing my bestie, the absolute best on her best day of the year!Cheers to more fun, more memories and cake! Happy birthday.HBD to my favorite secret keeper!HBD, queen!

Earlier today, the YouTube mogul took out an ad campaign on X-formerly-Twitter to wish himself a happy 27th trip around the Sun. "Happy Birthday MrBeast!" the simple post read.

With over 49,000 likes, 6,500 comments and 3,500 retweets at the time of writing, we can estimate this birthday post cost somewhere between $15,340 on the low end, to a whopping $88,500 on the ...