outcast became rap's beetles in the 2000s because we found both but particularly andre becoming more obsessed with the kind of adventurous landscape of music >> always knew about outcast then come out with an album speaker box and the love below and they have this song called hey ya. >> ♪. ♪. ♪ it's bare al hip hop song really, i'm not sure what it is but it's got this kind of frothy 60's vibe sounds like something mo town would have put out when they're doing the sound of america. hey ya ♪, ♪ >> next thing everybody is singing this one line, shake it like a polaroid picture. >> shake it, shake it, shake it like polaroid picture. ♪ ♪.