"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, whom 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. Upon its release, "Power Up" received positive reviews from critics for its catchy and addictive nature, further commenting the song as a "perfect" delivery for the summer. It was a commercial success in the group's native country, earning the group their first "perfect all-kill" title since their debut in 2014. The song eventually became the group's second and fifth chart-topper on the Gaon Digital Chart and Gaon Download Chart, further staying atop both charts for two weeks. It also peaked at number six on Billboard'''s World Digital Songs chart, giving the group their third No. 6 entry and their twelfth top-ten entry on the chart. The song's music video was included in Billboard's 50 Best Music Videos of 2018: Critics' Picks list, with Red Velvet being the only South Korean artist to make the list. Background and release After making their official debut in Japan with the release of their first Japanese EP #Cookie Jar, the group's company SM Entertainment announced in July 2018 that Red Velvet will release their sixth Korean extended play in the next month which they revealed would be a special summer mini album titled Summer Magic. Amidst a tight schedule, the song and its parent album was recorded while the group was on tour. The song was marketed as their second special summer single after "Red Flavor" which was released in 2017. The group shared during a press conference for their second solo concert "REDMARE" in Seoul that they felt burdened by the success of their first summer single but were confident that the new track would be "another summery earworm". Member Wendy compared "Power Up" to "Red Flavor" and said that if the latter "reminded people of