Top in Dar refers to being the top (musician) in Dar es Salaam. His real name is Khalid Salum Mohammed.

He attended Bunge primary school until 1996, and later 2000 he attended Ordinary level. In the same year, Khalid Mohamed underwent a production studio course for eight months and then attended several computer courses in Dar es Salaam.

T.I.D. comes out of the current vivid hip hop/ R&B musical environment in Dar es Salaam, T.I.D. is in fact short for "Top in Dar". He started to venture into music by the age of 7 by imitating tracks from various foreign artists such as Bobby Brown, New Edition where he was practicing and perfecting for the purpose of becoming like them. With his debut album entitled "Sauti ya Dhahabu", which consists of eight songs, including his smash hit "Zeze", that also was included on Putumayo's 2003 compilation "Global soul".

"Sauti ya Dhahabu" is published on Amit Bajaj's Poa Records that also released T.I.D's former hit single "Mrembo."

Some of his songs include Understanding, Watasema sana, Nakweda zangu, Nimezama, etc