Blue Ivy’s fairy princess-themed 4th birthday party looks like it ran up a healthy tab

Blue Ivy's fairy princess-themed 4th birthday party looks like it ran up a tab worthy of a celebrity wedding ... but that's just how Jay Z and Beyonce roll.

blue-ivy-4th-birthday-2 blue-ivy-4th-birthday-3 Blue turned 4 in January, but Bey just uploaded the pics from inside the shindig. Looks like the celebration included some Hunger Games-styled bow and arrow practice, and teepees ... for those serious 4-year-old sit-downs. Hired entertainment? None of mom and dad's singing or rapping pals -- TWO fairy princesses! blue-ivy-4th-birthday-4 It's good to be music royalty.