Joseph Mayanja (born 30 April 1979), better known by the stage name Jose Chameleone, is a UgandanAfroBeat artist and musician. Chameleone sings in Luganda, English, and Swahili.
He started his music career in the early 1990s with the Ogopa Deejays, a Kenyan record label then and managed to gain popularity across the entire African continent. Chameleone's music style is a mixture of Ugandan folk music, central African rumba, zouk, and reggae. He has won about 20 awards.
Joseph Mayanja was born to Gerald and Prossy Mayanja on 30 April 1979 in Kampala district. He is 4th out of 8 children. He went to Nakasero Primary School, Mengo Senior Secondary School, Kawempe Muslim Senior Secondary School, Katikamu Seventh Day Adventist Senior Secondary School, and Progressive Senior Secondary School.
Chameleone's career began about 1996 as a DJ at the Missouri night club in Kampala.Later he signed to the Kenyan record label Ogopa Deejays, which released his first single, "Bageya" that featured Kenyan artist Redsan. Throughout years he has recorded record selling albums like Mama Mia, Mambo Bado, Jamila, Kipepeo, Bageya, Shida za Dunia, Bayuda, and Njo Karibu.
Jose released his first album in 2000 and by 2013, he had released a total of 13 albums. Some of them include Kipepeo, Shida za dunia, Valu valu, Bayuda, Badilisha, Sweet Banana and Champion. Some of his hit songs include "Valu valu", "Jamila", "Shida za dunia", Bayuda, "Tatizo", "Nkwagala nyo", "Kipepeo", "Dorotia" and "Kipepeo". He performed to the largest audience at the Lugogo Cricket Oval Stadium in Kampala.
Bageya, was released in 2000, Mama Mia in 2001, Njo Karibu and The Golden Voice in 2003, Mambo Bado in 2004, Kipepeo in 2005, Shida za Dunia in 2006, Sivyo Ndivyo and Katupakase in 2007, Bayuda in 2009, Vumilia in 2010, Valu Valu in 2012, Badilisha in 2013, Tubonge in 2014, Wale wale in 2015, Sili Mujjawo in 2016, Sweet Banana in 2017, Champion in 2018.
He is currently the CEO of the music label Leone Island. Several Artistes have been associated with this label. They include: the late Moses Radio, Weasel, the late AK 47, King Saha, Papa Cidy, and Pallaso, Melody, Yung Mulo and Big Eye.
The former speaker of the parliament of Uganda, Rebecca Kadaga, designated Chameleone to be the Ambassador of the Busoga Tourism Initiative. He also Directs Chameleone Foundation aimed at improving skills and talent amongst under opportunitied youths 
Chameleone is a member of a coalition of musicians who use their fame and fortune to help reduce poverty and create awareness campaigns for HIV/AIDS.