Need Help

Me and my best friend are throwing a party for no reason at all! there are going to be alot of people there guys and girls beetween the ages 13 & 16 i have a pool and a bon fire pit so that mite help. Me and my friend dont wanna look stupid and we wamma throw a huge party that every1 will remeber! there are gonna be preps and punks there and they sometimes dont like the same things so plz plz help me and my friend have the best arty of the year!!