Conversation so far:
what happened in 2008 regarding shinee?
Prior to the group's debut, the label company, S.M.
Entertainment, introduced an upcoming contemporary R&B boy group.
did they make any albums?
On May 25, 2008, the group's first EP, Replay, was released.

Question: was it successful?
Self-contained rewrite: Was Shinee's first EP, Replay, successful?