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From AllHipHop.com:

Sean "Diddy" Combs has been announced as a headlining act during the second annual Thisday Festival, which takes place in Lagos, Nigeria. Combs will perform alongside artists like Shakira, John Legend, UB-40, Kelly Rowland and others. The two-day concert takes place July 14-15 at the ThisDay Events Center and is presented by Leaders & Company, publishers of ThisDay newspapers.

Via Theo in the forums.