Summer Magic is the second special Korean extended play (seventh overall) by South Korean girl group Red Velvet, marketed as their special "summer" EP following The Red Summer, which was released in July 2017.
Released on August 6, 2018, the EP contains seven tracks, including the lead single "Power Up" and the English version of "Bad Boy" as a bonus track, making it their first song to be released in English.
The EP was a commercial success domestically and internationally, topping South Korea's Gaon chart's Album Chart, Single Chart and Download Chart.
Elsewhere, it debuted at number three on the US Billboard World Albums chart.
It also charted on the website's Heatseekers Albums chart at number 3, the Digital Albums at number 21, and became the group's first release to enter the Top Album Sales chart at number 91.
The lead single "Power Up" also debuted at number 6 on its World Digital Songs chart.
In France, the album charted at number 42 on the French Album Downloads Chart.
The EP is also the group's first release to chart in the UK and Australia, debuting at number 38 on the UK Album Downloads Chart and at 31 on the Australian Top 50 Digital Albums Chart.
After the release of their first Japanese extended play #Cookie Jar, the group's company SM Entertainment announced in July that Red Velvet would release their sixth Korean extended play in August.
Osen reported that the members finished filming the music video for the single "Power Up" in Gyeonggi Province on July 19 and days later, SM Entertainment revealed that the EP would be released on August 6 and was titled Summer Magic.
The lead single "Power Up" is described by Pop Crush as an upbeat song with a "melody reminiscent of 8-bit-style video games" with lyrics that express a "work hard, play harder" theme; it is the group's second summer single after "Red Flavor".
During the press conference for their second solo concert 'REDMARE' at the Olympic Park's handball arena in southeastern Seoul on August 5, member Yeri likened the melody to the tune of a Tetris game, stating that she "thought it's exactly the song you should listen to in summer" since it is "energizing and can play in the background for driving".