Tyler's real name is Steven Tallarico. His first band was called The Strangeurs. They had to change their name because of a band called The Strangers. They became Chain Reaction, and Tallarico became Steven Tally. After Chain Reaction split up, he formed Aerosmith and became Steven Tyler. His first choice of stage name was Tyler Britt, but their manager talked him out of it and suggested Steven Tyler.
Tyler said that this was the only song on the band's first album where he used his real voice. He was insecure about how his voice sounded on tape, so for the other songs, he tried to sing a bit lower and sound more like soul artists
Eminem used the chorus of Dream On for his song "Sing for the Moment"
Many Aerosmith fans believe that Steven Tyler wrote all of the lyrics to the song about the tension and hatred between the band members and Joe Perry's wife