in the late 1980s, engelen teamed up with jade 4u (nikkie van lierop) and olivier adams to form lords of acid and multiple other projects including channel x and digital orgasm. khan's most famous solo work is "injected with a poison" (1992). the single "free your body / injected with a poison", by praga khan featuring jade 4u, reached #16 in the uk. "rave alert" also charted (#39).