Olanrewaju Ogunmefun, better known by his stage name Vector, is a Nigerian rapper and songwriter. He has released three studio albums, including State of Surprise and The Second Coming (2012). In anticipation of his second studio album, he released a mixtape titled Bar Racks. Lafiaji, his third studio album was released in December 2016. He also released a mixtape in October 2018, The Rap Dialogue, in an effort to keep the spirit of Nigerian hip-hop alive. In November 2019, his fourth studio album, Vibes Before Teslim: A Journey To Self-Discovery, was released.