who doesn't know their smash hit 'walk this way' together with... aerosmith? it's only one single of a long list of fun songs on this album. yes, it is hip hop but rather old school: a bit edgy, with a lot of rock influences (i.e. cutting guitars) combined with funny tunes and snappy lyrics.
and yes: these guys have a bit of an ego, but never mind, it's especially an artistic one.