Maysian Lim, better known as Masia One , is a Singaporean/Canadian female rapper from Toronto, Ontario, Canada，
She was born in Singapore and moved to Canada at a very young age， She grew up in Vancouver and eventually moved to Toronto，She attended the University of Toronto and graduated with a degree in Architecture， In 2003, she began her own record label known as M1 Group (later renamed The MERDEKA Group) and subsequently released her debut album, Mississauga. Her most famous songs[citation needed] are "Split Second Time," "Halfway Through the City," and "Return of the B-Girl". In 2003, Masia One became the first female rapper to be nominated for "Best Rap Video" in the MuchMusic Video Awards，
Her second album, Pulau was released in fall 2008, in two volumes; Pulau: Chapter 1: Montreal in the Fall and Pulau: Chapter 2: The Islands，It features collaborations with Moe Masri, Isis, Lady E, DJ SARASA, Dylan Murray, Zaki Ibrahim, Junia T, Moka Only, Sikh Knowledge, Vybz Machine and more.

In 2012, she appeared on former Red Hot Chili Peppers guitarist John Frusciante's EP, Letur-Lefr. Maisa One has also been featured on two ill.Gates songs, on his 18-track LP, The ill.Methodology, also released in 2012.