How do i plan a surprise party for my parents?

Question

and invite their friends and such without my parents finding out?

Answer 1

What I would tell you to do is to call all of their friends and invite them,but beg them not to tell your parents because it's a surprise and tell them if your parents ask about their birthday that they "forget",so your parents won't suspect anything is going on.  

Answer 2

find out a good day to have it that your parents don't have any plans. then see if you can have it at another relatives house- easier for them to not find out about it then! send out invites to all friends and family and make sure to put on there real big SURPRISE PARTY! I would then also put on there to please be prompt in order to surprise them at whatever time you pick (at least 30 minutes before your parents plan to arrive). arrange with the family members who will bring what food and drinks, pick up some decorations from the dollar store and decorate the house, have music ready, if this is for a anniversary or something you can make a picture board of pictures of your parents to have out or bring along picture albums for people to look through during the party. then have that family member set them up like inviting them over for dinner that night or something.