Why Davido cancelled Dbanj's UK concert

There have been several speculations as to why Davido cancelled his Dbanj's UK concert.Well,Davido himself gave the reason on twitter.He was'nt granted a UK visa.

"TO ALL MY FANS IN THE UNITED KINGDOM (UK), WHO I VERY MUCH APPRECIATE,

""I regret to let you know that I will not be performing along side my most respected big brother and friend D’BANJ at the scheduled show of August 27, 2012 in London.

I am both a Nigerian citizen, as well as an American citizen, I carry both the Nigerian and the American passports. As an American citizen, I do not require a visa to enter the United Kingdom, however I require a work permit in the UK for any paid performance such as the scheduled August 27, 2012 in London, that is the law in the United Kingdom. I applied for a work permit at the British Embassy in Abuja/Lagos but unfortunately up till the close of business on Friday August 24, 2012.
 I was unable to obtain a work permit, as a result I have to cancel my performance and my trip to the United Kingdom altogether. I apologize for the inconvenience and the disappointment, but be rest assured that I will make it up to you all on a future date. You will agree with me that it is better to be law abiding at all times and in every jurisdictions. Finally, please go out en mass to support the Koko Master (D’BANJ) and have a wonderful night on August 27, 2012."

Even Omo baba olowo's get turned down.(double wink)