Kastriot Rexha (; born 27 November 1989), known professionally as Majk or Dr. Mic, is an Albanian rapper.
Kastriot Rexha was born on 27 November 1989 into an Albanian family in the city of Pristina, then part of the Socialist Federal Republic of Yugoslavia, present Kosovo. He started as a member of the rap duo TDS along with Kosovo-Albanian rapper Onat. After releasing their first album, 17 Arsye, the group split in 2009.