Happened to me before. I still remember my dream I had a couple of hours ago. I was in the back of class , and for some reason I was talking to a friend about how Elvis is still alive, and I saw him in a crackhouse smoking crack singing "you aint nothing but a crack pipe" .. in his normal voice..then i pretended i was holding a crackpipe and lighting it up and taking a hit then i made my voice all harsh and shit and said "u aint nothin but a craaaaack pipe" in that voice.

And then I woke up. lol my dreams been trips lately.