Tell Me (Wonder Girls song)

When producer Park Jin-young first introduced the song to the group, the Wonder Girls felt that the song was too different and would not be successful. However, once they were used to the song, they eventually believed it could be a strong single.

"Tell Me" is a fast-tempo song about a girl who has fallen in love who hopes that he likes her too which she asks him to tell her that he likes her too. The highlight of the song is an exclamation of surprise, "어머나!" (Eomeona!, similar in meaning to "Oh, my goodness!) during the chorus which member Sohee does her trademark “Omona” expression.

This was the first single to feature Kim Yubin, the replacement for former member Kim Hyun-ah, who was removed from the group by her parents due to health issues. On September 5, 2007, Good Entertainment, the talent agency for the popular boy band Shinhwa, sent their trainee Yubin to JYP Entertainment as a replacement for Hyun-ah. She made her debut three days later in the group's live performance of "Tell Me" on Music Bank.[4] Due to the last-minute addition of Kim Yubin, the album version does not feature her; Before Hyuna left the group, according to sources she was already in the ‘Tell Me’ video. She was even the Wonder Girl in the music video but with her departure, Sohee took over the responsibilities. However, the version released and promoted by the group contained a rap verse performed by Kim Yubin. The single was a hit and reached number one on various Korean television and internet music charts, including KBS's Music Bank. Although the rap version was not initially given a release, it was eventually released as a B-side on the Wonder Girls' follow-up single "So Hot".

The original version of "Tell Me" is featured on the group's debut album The Wonder Years and features vocals from the original line-up consisting of Min Sunye, Park Yeeun, Ann Sohee, Sun Mi and Kim Hyuna. After the departure of Kim Hyuna, the song received a rap verse to see the introduction of Kim Yubin to the public. The radio version was unavailable for purchase upon the single's original release. The song was later made available for purchase on the group's single "So Hot" as a B-side. The song was later re-recorded for the Japanese release of their greatest hits album WonderBest (2012) and features the band's third line-up consisting of Min Sunye, Park Yeeun, Ahn Sohee, Kim Yubin and Woo Hyerim, with previous members' vocals removed. "Tell Me" was sung officially by Wonder Girls in 3 languages: Korean, English and Mandarin-Chinese.

The choreography for the song was simple and widely imitated: by October, many fan performances of the dance circulated on video sharing sites such as YouTube and Daum,[5] including one by a group of policemen who were eventually profiled on SBS's Star King and performed both in front of and with Wonder Girls.[6] This was dubbed the "Tell Me Syndrome" and led the girls to be named "Korea's Little Sisters". Many celebrities, including Shin Hye Sung, Super Junior's Kim Heechul, Nam Hyun Joon and Hong Kyung-min, also sang and danced to the song at their own fan meetings. The song was labelled a "pop phenomenon" by the San Francisco Chronicle, and YouTube co-founder Steve Chen stated that the dance clips were among his favorites on the website.[2] Furthermore, on the December 28th, 2007 edition of Music Bank, Big Bang joined Wonder Girls for a performance that included both Tell Me and Lies.[7]

The song has also been officially covered by other K-Pop artists multiple times:

• In full by Girls' Generation on the July 4th, 2008 edition of Music Bank, with Sohee's verse performed by Seohyun and Sunny, Yeeun's verse performed by Taeyeon with Jessica doing Sunye's high note, and Yubin's rap verse performed by Yuri and Hyoyeon.[8] This was one half of a song trade where both groups covered one song by the other group, with Wonder Girls also covering Kissing You on the same show.[9]
• In full by JYP labelmates Twice at an open concert on May 25, 2016.[10]
• As a dance cover by Sistar on MBC's Star Dance Battle on February 3, 2011.[11]
• Covered by AOA.