Is my idea "fresh"?

Hello everyone,

so i started creating a party game which i think has a cool unique theme and it's lots of fun.

It's called RHYME:THE RAP CHALLENGE in which players are rappers and have 4 rounds to create and rap their own rap song. Each round players choose 3 cards from 12 different categories (farm, religion, house, purse, body etc) and have to use 1 of the 3 words in each card, 3 words in total. They have to use those 3 words in order to create their rhyming verse in 3 minutes time. After the end of each round they rap their verse on the beat which will be playing. Depending on how they use the words they gain or lose points. After 4 rounds the player with the most points is the winner.

The game is lots of fun not only from the fact that players will need to rap their song, but also from the fact that in the end of the 4 rounds players need to have a song that makes sense as a whole. That is easier said than done because each successive round players cannot chose cards from categories they chose before. So, when you are trying to continue your story with words that don't really match what you want to write about, funny and weird stories emerge resulting in laughter and good times.

Before i began the game i did a search everywhere i could to find out if there was something similar already and i did not find anything.

Have you heard of anything like this or do you think my game is something "fresh"?

Thanks.