Liquid Liquid is an American no wave and dance-punk group, originally active from 1980 to 1983. They are best known for their track "Cavern," which was covered-without proper permission or attribution-by the Sugar Hill Records house band as the backing track for Melle Mel's old school rap classic "White Lines." The group released a series of extended plays, including the acclaimed 1983 12" EP Optimo. In 2008, the band reformed and have played in multiple countries.