| "Why So Lonely" | ||||
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| Single by Wonder Girls | ||||
| B-side |
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| Released | July 5, 2016 | |||
| Recorded | 2016 | |||
| Genre | ||||
| Length | 3:26 | |||
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| Songwriter(s) | ||||
| Wonder Girls singles chronology | ||||
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| Music video | ||||
| "Why So Lonely" on YouTube | ||||
"Why So Lonely" is a song by South Korean girl group Wonder Girls. It was released via JYP Entertainment on July 5, 2016, and was distributed by KT Music. The song was written by group members Hyerim, Sunmi, and Yubin, along with songwriter Hong Ji-sang who also handled the track's production. Musically, "Why So Lonely" is a reggae-pop dance track that lyrically depicts the "lonely feeling after a romantic relationship". The recording was distributed as a standard CD and was made available to digital outlets. The single album includes the two B-side tracks "Beautiful Boy" and "Sweet & Easy"; the former track was released on a limited edition vinyl at the 6th Seoul Record & CD Fair a month prior.
Upon release, the song received positive reviews from music critics, who praised the group's successful venture into reggae, and was awarded Best Pop Song at the 14th Korean Music Awards. Commercially, "Why So Lonely" saw success in South Korea—the digital song topped the Gaon Digital Chart while the CD single charted at number three on the Gaon Album Chart. The music video for "Why So Lonely" was posted to JYP's YouTube channel and was directed by Lumpens. To promote the single, Wonder Girls performed the song on various South Korean music programs, winning awards on The Show, M! Countdown, Inkigayo, and Music Bank.