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.
Did he release any singles?
This marks the first release of their collaborations.
The single was also released in Japanese with an original Japanese music video on 4 April 2012.
How did he treat his fans?
CANNOTANSWER.

Question: Did he perform live?
Self-contained rewrite: Did Eunhyuk perform live?