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.
Did he perform live?
From 23 March 2012, he took over as MC for the last three live shows of singing-survival program Great Birth 2, better known as MBC Star Audition, on MBC.
Did he have any other live shows?
Super Junior's first world tour Super Show 4, the pair held a fan meeting, Premium Mini Live Event, in support of the single on 11 April at Shibuya-AX, Tokyo.

Question: Did he release any other albums?
Self-contained rewrite: Did Eunhyuk release any other albums besides Oppa Oppa?