And to prove to your husband that the other mums are way more pushy than you.
Now obviously not everyone can be cast as Mary, but who said the seventh star at the birth of Jesus wasn't equally as important? At least they will all get a moment in the spotlight, right?
Whether you little'un is the child waving energetically at the front, or the one begging the teacher (loudly) to go to the loo, here are the 17 children you'll find in every Christmas play...
Psst... Scroll to the bottom to find out how you could win a fantastic selection of Enid Blyton books with your own child's nativity play pics!
1. The one who always suffers a wardrobe malfunction
Those white tights seemed like a good idea at the time.
2. The one who always gets picked to be Mary
It's because her mum buys the teacher Thorntons for Christmas, isn't it?
3. The one with a weak bladder
I'm sure one of the three wise men wet himself in the bible as well...
4. The one who loves audience participation
WHY isn't daddy waving back when I'm so obviously shouting his name?!
5. The one who loves a fight
Take it into the aisles kids.
6. The one who has absolutely no shame
No that is not my son who just picked a bogey out of his nose and wiped it all over the Angel Gabriel's shoulder.
7. The one who loves indecent exposure
It's like a blooper from The Full Monty.
8. The one who forgets where they are
Sure, now is definitely the time to trim your toenails with your teeth...
9. The victim of the one with the weak bladder
Sorry your daughter ended up face down in my son's wee.
10. The one with mad multi-tasking skills
I'm sure they picked my son to be narrator because last year he mastered reading his lines out whilst clutching himself...
11. The disgruntled diva
Deciding to wait until you are centre stage to let everyone in the audience know how disappointed you were with the casting of Joseph.
12. The one who makes up their own script
It's definitely called the 'manger' and not the 'bin'
13. The one who gets bored of acting
Guys I'm outta here.
14. The one who shows motherly promise
Yes that's right throw the baby Jesus face first into the crib, he's not the main attraction here.
15. The one who is a born performer
Are your parents paying for acting classes already?!
16. The one who might not be getting any Christmas presents
But the baby Jesus just makes such a good football!
WIN an Enid Blyton book bundle with your Christmas play pictures!
Are you watching your little one perform in their school Christmas play this year? Don't forget to take a cute snap and post to our Facebook page for the chance to win this fantastic bundle of Enid Blyton classics!
The prize includes the much-loved reads: The Famous Five Annual 2016, Magical Treasury, Enid Blyton's Christmas Stories, The Famous Five: Five on a Treasure Island and The Famous Five Colour Reads: Happy Christmas, Five. Show us your pics by 23:59 on Sunday 20th December - we'll be announcing the winner on our Facebook page on Monday 21st December.
Click here for full terms and conditions. And don't forget to check back to see your entry in our picture album. Good luck!