The term mangabey can refer to three different genera of Old World monkeys. Lophocebus and Cercocebus were once thought to be very closely related, so much so that all the species were in one genus. However, it is now understood that the species within genus Lophocebus are more closely related to the baboons in genus Papio, while the species within genus Cercocebus are more closely related to the Mandrill. The single species in Rungwecebus was discovered recently.
The three genera of mangabeys are:
I got an ape performing in my head
If he don't stop then i will soon be dead
This monkey's no friend of mine
I try to act straight but he's on cloud number nine
He's got a cup made of tin
And it's 'cause of him you won't let me in
He bangs a drum so i can get no sleep
Well he's a monkey but he can't be beat
Head over heels on banana peel
I'm getting confused as to what i feel
And every time i try to speak
He always puts his monkeytongue in my cheek
Oh my my - i'd do anything to make him die
But then i see there's nothing i can do
The monkey's just a part of me
I got a monkey singing in my brain
I should have known already we're the same
I got some monkey business to attend
I think i'll ask him if he'd hold my hand
And ask him to be a friend of mine
Together we'll fly up to cloud number nine
And share his cup made of tin
Maybe then you'd like to let us in
Oh my my - i did everything to make him die
But now i see there's nothing ican do