Soundpieces: Da Antidote! is the first full-length studio album by American hip hop trio Lootpack. It was released on June 29, 1999 via Stones Throw Records. Production was handled entirely by member Madlib. It features guest appearances from Medaphoar, Declaime, Godz Gift, Kazi, Oh No, Defari, Dilated Peoples and Tha Alkaholiks.

Otis Jackson Jr., known professionally as Madlib, is an American DJ, music producer, multi-instrumentalist, and rapper. He is widely known for his collaborations with MF DOOM, J Dilla, and Freddie Gibbs. Madlib has described himself as a "DJ first, producer second, and MC last." His stage name is an acronym for "Mind Altering Demented Lessons In Beats".