Afrobeat star, David Adeleke, popularly called Davido, has paid tribute to his late friend, Olugbemiga Abiodun, popularly known as DJ Olu, who passed away seven years ago. Reposting a throwback picture of himself and DJ Olu on his Instagram story on Monday, Davido wrote, “Billi 4ever.” During his lifetime, DJ Olu was the official disc