Conversation so far:
When was Oppa Oppa released?
16 December 2011.
Who was it released with?
Eunhyuk and Donghae released digital single Oppa.
When did he perform with super junior?
first performed it at Super Junior's Super Show 4 Seoul concert on 19 November 2011.

Question: Did he release any singles?
Self-contained rewrite: Did Eunhyuk release any singles?