They Don't Know is the second single from Houston based rapper Paul Wall's second album The Peoples Champ. The album's version of the song features Mike Jones. There is also a remix that features Lil Keke, Slim Thug, Big Hawk, Bun B, and Trae. The video is a composite of both versions of the song featuring both Bun B & Mike Jones, where Paul Wall's second verse is shortened for Bun B's verse. Lil Keke, Slim Thug and Killa Kyleon made cameo appearances in the video.An older version of the song was featured on Paul Wall's first solo album, Chick Magnet.