Reboot (Wonder Girls album)
Reboot (stylized as REBOOT) is the third and final studio album by South Korean girl group Wonder Girls. It was released on August 3, 2015, through JYP Entertainment. The Wonder Girls were more involved in the composition of this album, with each member having writing and/or production credits on at least one song; each song has credits for at least one member. This is the first album in years to feature member Sunmi and the first since the departure of members Sunye and Sohee. The album musically conveys a 1980s-inspired style, incorporating genres including synthpop , hip hop, pop rock and dance-pop. "Reboot" was met with critical acclaim from music critics upon its release, who praised its musical styles and production; "Billboard" named the record the best K-pop album of 2015 and the fourth best K-pop album of the 2010s. Commercially, "Reboot" charted at number five on the Gaon Album Chart and number two on the "Billboard" World Albums. Its lead single, "I Feel You", was released on August 2, 2015. Background and composition. On June 24, 2015, it was reported that member Sunmi would return to the group after her departure in  February 2010. On July 20, it was confirmed that members Sohee and Sunye had officially withdrawn from the group. The same day, JYP Entertainment announced the return of the Wonder Girls with a new band concept. For this concept, Sunmi plays bass guitar, Yubin plays drums, Hyelim plays guitar, and Yeeun plays piano. Individual teasers of the members playing their respective instruments began being released on July 20. Despite the concept, none of the members actually recorded instrumentals for the album, though they learned to play the instruments and performed songs with their instruments live. Only Yeeun already knew how  to play her instrument, the piano, prior to the lead up to the comeback. Both the main single "I Feel You" and its music video are heavily inspired by 1980s music, similar to the group's 2008 single "So Hot". Singles and promotion. On July 29, a promotional video for the release of "Reboot" was released on YouTube. "I Feel You" served as the lead single for the album, being released on August 2. It was accompanied by a music video directed by Lumpens, which premiered on the same day on JYP Entertainment's YouTube channel. It takes place in  1987 and shows each member playing her own instrument and also solo scenes. It is their first single since Sunye's and Sohee's departures and their first single since 2008's "Nobody" to feature Sunmi. The song was promoted on major South Korean music shows, starting on August 8 on KBS's Music Bank; on those shows, they also performed other tracks from the album, including "Candle", "Back", and "Rewind". They also appeared on variety shows, including MBC every1's "Weekly Idol". In addition, the group appeared on various radio shows. The songs "Candle" (featuring Paloalto) and "Rewind" had  dance practice videos released on YouTube on August 11 and 20, respectively. Reception. "Reboot" debuted at number five on the Gaon Album Chart. In the United States, the album debuted at number 2 on the "Billboard" US World Albums chart, becoming their best charting album on that chart. It also peaked at number twenty-five on US Heatseekers Albums. It was ranked at number eighteen on FuseTV's list The 20 Best Albums of 2015 and at number one on "Billboard"'s The 10 Best K-Pop Albums of 2015. The main single, "I Feel You", charted at number one  on eight major South Korean music streaming charts during the week of its release. It peaked on the third position of the country's Gaon Digital Chart.