She is her country's only beauty queen who has competed in four Grand Slam Pageants (Miss Universe, Miss International, Miss Earth and Miss Tourism Queen International) in one single year.
Kamwelu was born to a Tanzanian Father and a Russian Mother. She started participating in regional beauty contests in 2008 and finally ended up as a second runner up in Miss Ilala 2008[1] after which she was able to participate in Miss Tanzania the same year but was unplaced.
Finally she represented her country in Miss Tourism Queen International 2011 which was held in Xi'an, China where she ended up as the 4th runner up.
Miss Universe Tanzania
Kamwelu won the fifth edition of the Miss Universe Tanzania pageant in May 2011.[2] and represented her country in the Miss Universe 2011 pageant in São Paulo, Brazil. Although she didn't place but grabbed attention with her National Costume which received a lot of positive reaction.[3]
Towards the end of the year she was elected to represent Tanzania in Miss Tourism Queen International2011.
This feat makes her Tanzania's first and only beauty queen to participate in Four Grand Slam Pageants (Miss Universe, Miss International, Miss Earth and Miss Tourism Queen International (TQI)) in a single year.
Miss Southern Africa International
Kamwelu was sponsored by the Tanzania Tourist Board to represent the country in Miss Southern Africa International pageant which was held in Ndola, Zambia as a part of Zambia International Trade Fair. She won the main title[4] by defeating six other contestants and also won the best Evening Gown award.[5]