Jennifer Aniston's house

If you can’t seem to land yourself a lavish wedding, just throw yourself a lavish 40th birthday party!  That’s what Jennifer Aniston is doing…

OR – IS THIS GOING TO BE A WEDDING?????

Jen was on Ellen the other day, and according to The Detroit Free Press she admitted John will be at her birthday party… She turns 40 on Tuesday.

John is apparently going to PROPOSE on her birthday… but wouldn’t it be just like them to get married and shock EVERYONE?  I doubt it will happen but it would certainly be a good day for Jennifer!

Photos: Splash News Online