Produced by the Swedish duo Moonshine , who also worked on "Peek-A-Boo", and written by veteran SM songwriter Kenzie .

The song is famous for its "banana-na-na" hook and the line "Level up," which is a phonetic wordplay on the group's fandom name, ReVeluv .

An electropop track featuring heavy chip-music (8-bit) elements and a "big beat" rhythm.

While fruits in "Red Flavor" were "interviewed," in "Power Up," they bloom into flowers, signaling the group's maturity and growth over the intervening year. Callbacks:

The specific phrase "work hard, play hard" was inspired by advice given to the group by SM Entertainment founder Lee Soo-man during a company workshop. Visual Symbols and References