name this tune:

"yo! its about that time
to bring forth the rhythm and the rhyme
ima get mine, so get yours
i wanna see sweat comin out your pores
on the house tip the sound im swingin is
strictly hip-hop, no i aint singin this
bringin this to the entire nation
black, white, red, brown, feel the vibration
come on come on! feel it feel it!
feel the vibration . . . "