Conversation so far:
How did Richard Berry come up with the song Louie Louie?
Richard Berry was inspired to write the song, Louie Louie in 1955 after listening to an R&B interpretation of El Loco Cha Cha“.
Did it take Richard Berry long to make the song Louie Louie?
In 1955, Berry was inspired to write Louie Louie. Richard Berry released the song on Flip Records in 1957.
Did Richard Berry write the song, Louie Louie by himself?
Richard Berry and the Pharaohs recorded and released the song, Louie Louie.

Question: How old was he when he wrote it?
Self-contained rewrite: How old was Richard Berry when he wrote Louie Louie?