Today's music industry (the one that made "Juju On That Beat" go viral) bears little resemblance to the industry of the mid-aughts—a glorious time in hip hop that witnessed the peak of "ringtone rap" and seminal moments in crunk, hyphy, and snap.

What/WHO were the biggest one-hit wonders of 2006? We've (tragically) DQed DJ Unk ("Walk It Out") and Yung Joc ("It's Going Down), both of whom released singles that cracked the top 25 the same year. Read through the gallery to take a trip down memory lane.