How can i get my hair scrunched like ke$ha's withut my hair getting puffy?

ok im mixed and my hair is straight and i was watching the music vid of tic tok and i REALLY love her hair and i want to get my hair just like hers.... how can i like scrunch my hair without it poofing up i mean i have used scrunch for my hair and it works but in some hours it just poofs up and it looks AWFUl any tips? i just want my hair to be scrunched ALL DAY and not get poofy any suggestions directions or tips? thanks and no rude comments please 10 points for best answer!