A man on the left speaks into a microphone , while a man on the right plays an unidentified instrument with a drum set in the background .
It is likely that a man sings into the microphone while a guitar player performs behind the drummer .
It is impossible that a man sings into the microphone while a guitar player performs behind the drummer .
It is likely that a man sings into the microphone while a guitar player performs behind the drummer .
A man sings into the microphone while a guitar player performs behind the drummer .