Jet Coaster Love

"Jet Coaster Love" (ジェットコースターラブ, Jetto Kōsutā Rabu) is the third Japanese single of South Korean girl group Kara. The single was originally set to be released on March 23, 2011, but following the 2011 Great Tohoku Earthquake and tsunami disaster in Japan, the physical single was postponed to April 6, 2011. In order to help out the areas affected by the disaster, the group had decided to donate all proceeds from the sales of this single, both physical and digital, to relief efforts. It eventually became the group's first single to reach #1 on Oricon Daily and Weekly charts.

It was released in three different editions, 1 regular edition and 2 limited editions. The full single (excluding the bonus track) was released on iTunes Japan in March 16, 2011.

Background

It was announced on January 26, 2011, that TBC (also known as 'Tokyo Beauty Center'), the largest aesthetic beauty salon chain in Japan is scheduled to release a commercial featuring all five members of group next month despite the ongoing controversy the group was facing with three of its members desiring to terminate their contracts. The group teamed up with TBC to headline the campaign, “Kirei wa, TBC kara” (“Beauty comes from TBC”). The group's name “Kara”, which also means “from” in Japanese, was cleverly incorporated into the slogan in order to further promote the group’s position as spokespersons. However, it was still undecided as to whether or not the commercial theme song, "Jet Coaster Love", will be distributed digitally in the future.

Roller coaster

A roller coaster is an amusement ride developed for amusement parks and modern theme parks. LaMarcus Adna Thompson obtained a patent regarding roller coasters on January 20, 1885, which were made out of wood, but this patent is considerably later than the "Russian mountains" described below. In essence a specialized railroad system, a roller coaster consists of a track that rises in designed patterns, sometimes with one or more inversions (such as vertical loops) that briefly turn the rider upside down. The track does not necessarily have to be a complete circuit, as shuttle roller coasters demonstrate. Most roller coasters have multiple cars in which passengers sit and are restrained. Two or more cars hooked together are called a train. Some roller coasters, notably wild mouse roller coasters, run with single cars.

History

Russian mountain

The oldest roller coasters are believed to have originated from the so-called "Russian Mountains", which were specially-constructed hills of ice, located in an area that would later become St. Petersburg. Built in the 17th century, the slides were built to a height of between 21 and 24 m (70 and 80 feet), consisted of a 50 degree drop, and were reinforced by wooden supports.