Can we draw the following hypothesis from the context?

Context:

"Brown Eyed Handsome Man" is a rock and roll song written and recorded by Chuck Berry, originally released by Chess Records in September 1956 as the B-side of "Too Much Monkey Business." It was also included on Berry's 1957 debut album, "After School Session". The song title was also used as the title of a biography of Berry.

Hypothesis: Chuck Berry had two singles on his debut album.
It's impossible to say