Jetstar Airways Pty Ltd, trading as Jetstar, is an Australian low-cost airline (self-described as "value based") headquartered in Melbourne, Australia. It is a wholly owned subsidiary of Qantas, created in response to the threat posed by low-cost airline Virgin Blue. Jetstar is part of Qantas' two brand strategy of having Qantas Airways for the premium full-service market and Jetstar for the low-cost market. Jetstar carries 8.5% of all passengers travelling in and out of Australia.
The airline was established by Qantas in 2003 as a low-cost domestic subsidiary. Qantas had previously acquired Impulse Airlines on 20 November 2001 and operated it under the QantasLink brand, but following the decision to launch a low-cost carrier, re-launched the airline under the Jetstar brand. Domestic passenger services began on 25 May 2004, soon after the sale of tickets for her inaugural flight in February 2004. International services to Christchurch, New Zealand, commenced on 1 December 2005. Although owned by Qantas, its management operates largely independent of Qantas through the company formerly known as Impulse Airlines.
"Electric Shock" is the second studio extended play (EP) 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 EP's title track, "Electric Shock", as well as the EP, reached at the top spot on the weekly Gaon Charts. The EP sold a total of more than 70,000 copies in South Korea.
The EP's single and title track, "Electric Shock", is an electronic-dance song. The lyrics starting each line with the word, "jeongichunggyeok" ("electric shock" in English). It was written and arranged by Willem Laseroms, Maarten Ten Hove and Joachim Vermeulen Windsant, and produced by Future Presidents. The music video was released on June 11, 2012, and was choreographed by Jillian Meyers.
The track "Jet" is composed by SM Entertainment's songwriter Kenzie, the track has hip-hop rhythms and electronic dance; Amber co-wrote the rap.
The track "Zig Zag" was especially produced to focus on the "youthful and refreshing blend of vocals" of f(x) members which adds to the urban electronic sound created by the use of electric guitars and drum beats. The track was composed and written by music producer Hitchhiker. The lyrics were penned by Kim Bumin who often works closely with Hitchhiker.