Olanrewaju Ogunmefun, better known by his stage name Vector Tha Viper, is a Nigerian Hip hop artist, hails from Ogun State Nigeria, was born in Lagos State Nigeria. Vector has released three studio albums, State of Surprise (SOS 2010) and The Second Coming (2012). In anticipation of his second studio album, he released a mix tape titled "Bar Racks", and the third studio album, "Lafiaji" was released in December, 2016 having a major act D'banj on the record I Pray on the album. Also his feature with DAVIDO “comfort” off the Vibes Before Teslim EP; which was a number record in Nigeria first two weeks of its release.
He was the voice behind the Sprite commercial “Freedom From Thirst” that has aired on most radio stations across Nigeria in 2009. Following his break into mainstream he released the track "Born Leader"featuring Mavado of DJ Khaled We the Best Music Group. "Born Leader" is Vector’s third single off his second album titled The Second Coming. He shot the video in Miami, Florida and it was directed by Antwan Smith.[18] In August 2013 he was featured by Pheelz a producer on a song titled "Popular" which gained airplay in radio stations across Nigeria.
Also he left a mark on the African hip-hop scene by doing the longest freestyle in Africa on radio which had over 1 million downloads. Vector was featured in the just concluded 2020 BET Hip-Hop Awards political cypher, as the only act to represent Nigeria.