Power Up" is a Korean song recorded by South Korean girl group Red Velvet for their second special (sixth overall) Korean extended play, titled Summer Magic (2018). Characterized as an electro-pop song with elements of chip-music, the song was penned by Kenzie and was produced by production duo Moonshine, Ellen Berg Tollbom and Swedish singer-songwriter Cazzi Opeia, who worked on the group's previous single "Peek-a-Boo". It was released on August 6, 2018, as the lead single of Summer Magic by SM Entertainment and iriver as the South Korea distributor, whilst the Japanese version was later released as the third and final single from the group's second Japanese extended play Sappy on April 24, 2019, by Avex Trax.