Marianne Namshali Mdee (born June 21, 1992) popularly known by her stage name Mimi Mars is a Tanzanian singer, actress and media personality. Mars was born on June 21, 1992, in Paris, France. 

She is the daughter of a former Tanzanian ambassador in France, Sammy Mdee, and Sophia Mdee. 

She is the sister of Tanzanian television presenter and singer, Vanessa Mdee who is married to an American actor, Rotimi. Mars holds a LL.B from Kampala International University in Tanzania.

Mars started her music career in 2017. In late 2018, Mars released her first ever extended playlist called, ‘The Road’ that had six tracks. In 2019 she was a part of Coke Studio Africa 2019 as an upcoming artist. 

She has since worked with RJ The DJ, Barnaba Classic, AY, Dogo Janja, Marioo and notable names in the Eastern African Music.

Mars debuted as an actress in 2019 when she played ‘Sophia’ in ‘You again’, a film directed and Starred by a Kenyan actor, Nick Mutuma.

In 2021, She played ‘Maria’ in ‘Jua Kali’, a drama series airs on DStv’s Maisha Majic Bongo alongside TID, RJ The DJ, Godliver Gordian, Beatrice Taisamo, Van Vicker, Patience Ozokwor and Sho Madjozi.