Michael Collins Ajereh (born 26 November 1982), known professionally as Don Jazzy, is a Nigerian record producer, Brand Ambassador, audio engineer, record executive, singer, entrepreneur, Influencer and Comedian. He is the founder and the CEO of Mavin Records.Don Jazzy was co-owner of the defunct Mo' Hits Records record label with Dbanj. His younger brother is D'Prince. Don Jazzy was born Micheal Collins Ajereh in Umuahia, Abia State, on 26 November 1982, His mother is an Igbo princess from Abia state and his father is a member of the Isoko people. Don jazzy's younger brother is D'Prince. Don jazzy's family moved to Ajegunle, Lagos where Don Jazzy was raised. In 2004, Don Jazzy collaborated with D'Banj to form Mo' Hits Records. In the next two years, Don Jazzy produced the albums No Long Thing and Rundown/Funk You Up.thunder fire you had also been started. Around this time, Don Jazzy developed a recognisable introduction, "It's Don Jazzy Again!"[citation needed]

In 2008, Don Jazzy was credited in the production of The Entertainer by D'Banj. He also contributed to the production of Wande Coal's Mushin 2 MoHits, an album that was described as one of the best albums to ever come out of Nigeria. Although Don Jazzy did not take credit as a singer, he performed background vocals for artists he produced. These performances include vocals for D'Banj, Sauce Kid, Dr SID, Ikechukwu, Kween, D'Prince, Jay-Z. Don Jazzy provided vocal performance for Kanye West's song Lift Off with Beyoncé on the Watch The Throne album.[citation needed]

In 2011, Don Jazzy was employed by Kanye West as a producer at Very Good Beatz. Don Jazzy worked with Jay-Z and Kanye West on the production of Lift Off, featuring Beyoncé on the album Watch The Throne which was released on 8 August 2011.[citation needed]

In March 2012, Don Jazzy and D'Banj confirmed their breakup citing artistic differences. On 7 May 2012, Don Jazzy announced a new record label, Mavin Records. He said, "I see Mavin Records being the power house of Music in Africa in the shortest possible time." On 8 May 2012, he released an album featuring the artists signed to his label. The songs on the album included: Amarachi, Forever, Oma Ga, Take Banana and Chocolate, YOLO and the anthem I'm a MAVIN. Mavin records signed the vocalist, Tiwa Savage. Don jazzy built a social network platform called "Marvin League" to complement and market his label.

On 5 November 2013, Ajereh had conflict with an artist, Wande Coal who left the label two days later.

In September 2014, Ajereh produced a Nigerian social activist song with Reekado Banks and Di'Ja called Arise.

At the Headies Awards 2015, Ajereh argued with Olamide. The two disagreed about who should have won the "Next Rated" award. Lil Kesh of YBNL records lost to Reekado Banks, Ajereh's artist. The winner of the award received a car. Apologies on both sides were posted afterwards.

After Reekado Banks departure from the Mavin Records label, Don Jazzy said he is still part of the family and wished him nothing but success in his career as he thanked him for the time spent with Mavin Records.

In 2019, he signed Rema and later went on in 2020 to sign Ayra Starr into Mavins Record Label. In 2021, he announced a new artist, Magixx.