I heard:

2 Of Amerikaz Most Wanted
California Love
Hit 'Em Up

all by 2pac, one day in 1996.

That was the probably the first time i actually acknowledged rap music. Of course there was ice ice baby, older 2pac singles, the chornic and doggystyle and biggies ready to die, but i was prolly too young to pay attention or care, or even be able to tell the difference from that to any other type of music