They bestride the Nigerian music scene like a colossus and suddenly disappeared into thin air when the ovation was loudest. Zule Zoo,comprising Micheal Aboh and Al-Hassan Ibrahim  who came into limelight after the success of their smash hit, ‘Kerewa’, which was banned by the Nigerian Broadcasting Commission, NBC,  for obscene content was the delight of many music lover in Nigeria in the early 2000s.