What is wrong with these photos:2face,Iyanya&Femi kuti?

There is something peculiar about these two photos which were taken today (in London).It also means something.If you give the accurate answer,i''ll hype you for 1 week(lol).
Let me give you a clue,there is something Iyanya is doing which 2face & Femi aren't,and there is something 2face&Femi are doing which Iyanya isn't. (It has nothing with being in London o)
 By the end of today,would give the answer if no one has.
If you get it,your IQ level is over 100.lol
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