Mor lam sing (Thai/Isan หมอลำซิ่ง) is a fast-paced, racy and modernized version of the traditional Lao/Isan song form mor lam (for ex:in 1986) . Sing comes from the English word "racing" (a reference to the music's speed and its origins among Isan's biker fraternity). A lead singer ( who ?) is accompanied by the khaen, a bamboo mouth organ, Western drums, electric guitar, electric keyboards and bass guitar. The style was invented in Chaiyaphum province around 1985 and was popularised over the next few years after it was taken up by Ratdri Sivilai in Khon Kaen. It is based on the Khon Kaen style of lam tang san but it incorporates string instrumentation and luk thung singing styles and extensive use of the Central Thai language rather than Isan.
A live performance of mor lam sing.
The songs are generally about disappointment in love or the hardships of life away from the Northeast of Thailand. Sexual innuendo is prominent, and feature young, fancifully dressed female dancers, called "hang khreuang".