What is the BEST party theme? 10 points to best answer!!!!!!!!?

I'm having a party for the end of eighth grade, we are all going into high school. The party will be about 20 to 30 people, and I really need a great theme i want it to be very fun and lively... PLEASE help!. My pre-thought themes are... 1.-20's, jazzy 2.-Country, Kind of western ... show more I'm having a party for the end of eighth grade, we are all going into high school. The party will be about 20 to 30 people, and I really need a great theme i want it to be very fun and lively... PLEASE help!. My pre-thought themes are...
1.-20's, jazzy
2.-Country, Kind of western
3.-Retro???
OTHER IDEAS????? HELP!!!!!
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