Simplify the following text for a Grade 9 native English-speaking person.
Original: The single from the mini-album is `` Oppa Nappa '' ( , literally `` Bad Brother '' , although contextually it refers to an older male friend ) .
Simplified: The 3rd track from the mini-album was performed by the 3 Girls ' Generation members and is titled Oppa Nappa ( , literally Bad Brother .