Conversation so far:
What was Oppa Oppa?
Oppa, Oppa is a digital single by Super Junior sub-group, Donghae&Eunhyuk.
When was Oppa Oppa released?
Oppa Oppa was released on-line on 16 December 2011 by SM Entertainment and distributed by KMP Holdings.
How did Oppa Oppa do on the charts?
On the day of its release, Oppa Oppa reached number two on Oricon Daily Chart with 42,114 copies sold.

Question: Did they release any other hits?
Self-contained rewrite: Did Super Junior release any other hits?