"
Turn It Up (remix)/Fire It Up" is the third single by American rapper
Busta Rhymes released from his second studio album,
When Disaster Strikes (1997). The original version, which appears on
When Disaster Strikes, takes a
sample of "
Love and Happiness" by
soul singer
Al Green. However, when issued as the third official single from
When Disaster Strikes in the spring of 1998, the remix had now contained a sample of the 1980s TV series
Knight Rider, and under a new title "Turn It Up (remix)/Fire It Up". The song, nonetheless, became Rhymes' third top-ten hit on the
Billboard Hot 100, reaching number ten. It also became a hit on the
rap (#1),
dance (#2), and
R&B charts (#7). Internationally, the single was a major success, reaching number two in the
United Kingdom and number three on the
Canada.