How old do i have to be?

to see criss angel live show i want to know because next year im turning 18 and i want to see his show really bad so i ask mom if we could go and she said yes i just need to know if any age can see his show or do u have to be 21 i really want to see him so so so bad and plz don't diss on him keep that comment to urself if u want to diss on him