Electric Shock is the second studio extended play (EP) (also known as a "mini-album") by South Korean girl group f(x). The EP was released digitally on June 10, 2012, and released physically on June 13, 2012, under S.M. Entertainment. The album's title track, "Electric Shock", as well as the EP, reached at the top spot on Gaon weekly charting.
On the EP, f(x) had worked with various producers and songwriters. Kenzie, S.M. Entertainment's resident songwriter, collaborated with f(x) to produce the second track "Jet" which was also used for comebacks stages on music programs. Hitchiker, producer of f(x) previous hit "Pinocchio (Danger)", returned to compose third track "Zig Zag". Misfit wrote half of the tracks of the EP. She had credit for "Beautiful Stranger", "Love Hate" and "Let’s Try". The title track "Electric Shock" was produced by Willem Laseroms, Maarten Ten Hove and Joachim Vermeulen Windsant.
The album sold a total of more than 70,000 copies in South Korea alone.
On June 5, SM Entertainment officially released f(x) new Mini Album Electric Shock on the 10th at 00:00 a.m. for South Korea music websites. On June 11, Electric Shock was available on iTunes for the global market, which included a special photo booklet.
The title track "Electric Shock" is an energetic and rhythmical electronic-dance song. The song compares confused but exciting feelings after falling in love to an electric shock and the lyric expresses this feeling interestingly by starting each line of the word, ‘Jeongichunggyeok (“Electric Shock” in English)’ to make it even more interesting. Composed by SM's female songwriter Kenzie, the track "Jet" is a lively track with hip-hop rhythms and electronic dance, in which Amber was directly involved with the writing of the lyrics of the rap. Composer Hitchhicker also brought a track called "Zig Zag", which is about escaping the reality and traveling to another world, and the track "Beautiful Stranger" features Amber, Luna and Krystal mature singing and performance with an urban and hip-hop feel and composed as a dance-pop and electropop song, story of a girl who communicates with strangers not with the closed attitude but with the open mind and explores the unknown world. The other two tracks include "Love Hate", a bubblegum pop song which the lyric wittily depicted the prelude to the intense love where the couple wanders between love and hate, and "Let’s Try" which draws influences from reggae, making it a total of 6 tracks to be included in the mini-album.
On January 22, 2013 the song "Electric Shock" was vote by professionals from the Korean music industry as number 4 song of top 10 songs in the domestic category. And the album "Electric Shock" is number 8 on the top 10 albums.
f(x) began promotions for "Electric Shock" on M.net's M! Countdown on June 14 and also performed "Jet" as part of a special comeback stage. The group performed "Electric Shock" on various music shows such as Music Bank, Show! Music Core, Inkigayo and M! Countdown.