A man wearing a dark shirt and dark pants is holding a piece of paper and singing into a microphone with two musicians behind him .
It is probable that there is a man wearing a dark shirt and dark pants getting ready to perform a blues song .
It is highly unlikely that there is a man wearing a dark shirt and dark pants getting ready to perform a blues song .
It is probable that there is a man wearing a dark shirt and dark pants getting ready to perform a blues song .
There is a man wearing a dark shirt and dark pants getting ready to perform a blues song .