Question: "Wild" and "Dr." appeared as the advertising theme songs for Coca-Cola Zero and a commercial for a hairstylist famous for repopularizing a hair style called what?

Context paragraphs:
Cheopji: Cheopji (hangul:첩지 ;hanja:疊紙) is a Korean hair accessory decorating the chignon of ladies when they wear a ceremonial dress.  It is usually made of silver, and a frog-shape is its common form.  The use of "cheopji" began after Baljaegaeheok(hangul: 발제개혁; hanja: 髮制改革; a reformation that prohibited Gache hair style, then promoted Chignon hair style) proclaimed by Yeongjo of Joseon.  It was used routinely at court, but ordinary people were to use this only when they wear a ceremonial dress.

Vidal Sassoon: Vidal Sassoon, CBE (17 January 1928 – 9 May 2012) was a British and American hairstylist, businessman, and philanthropist.  He was noted for repopularizing a simple, close-cut geometric hair style called the Bob cut, worn by famous fashion designers like Mary Quant and film stars such as Mia Farrow, Goldie Hawn, Cameron Diaz, Nastassja Kinski and Helen Mirren.

Caffeine-Free Coca-Cola: Caffeine-Free Coca-Cola was introduced in 1983 as a caffeine-free variant of Coca-Cola.  It was introduced to compete against Pepsi Free, which is now called Caffeine-Free Pepsi.  The diet variant, "Caffeine-Free Diet Coke," was the first variant of Diet Coke and was introduced in 1984, one year before the regular Coke version.  In 2013, "Caffeine-Free Coca-Cola Zero" was introduced in America.

Coca-Cola Zero Belfast Bikes: Coca-Cola Zero Belfast Bikes, commonly referred to as Belfast Bikes, is a public bicycle rental scheme which has operated in the city of Belfast since April 2015.  At its launch, the scheme, which is sponsored by Coca-Cola HBC, used 300 Unisex bicycles with 30 stations.

Coca-Cola Zero Sugar: Coca-Cola Zero Sugar, also called Coke Zero Sugar, is a diet cola produced by The Coca-Cola Company.  In some countries it is sold as Coca-Cola No Sugar.

Wild (Namie Amuro song): "Wild" is a song by Japanese recording artist Namie Amuro from her ninth studio album "Past<Future" (2009).  The song was released as the album's lead single on March 18, 2009, featuring the b-side "Dr.".  "Wild" was written and produced by Michio and T. Kura, while the latter track was written and produced by long-time collaborator Nao'ymt.  The songs are electropop tracks, which features instrumentation from synthesizers and keyboards.  "Wild" and "Dr." appeared as the advertising theme songs for Coca-Cola Zero and a Vidal Sassoon commercial

Coke Zero Facial Profiler: Facial Profiler was a free Facebook app created to promote Coca-Cola Zero by the advertising agency Crispin Porter + Bogusky.  The app used face recognition technology to search a database of voluntarily participating Facebook users to match people based on appearance.  The software's algorithm analyzed face attributes like skin color, face structure and angles of the face.  Once matched, users could contact their look-alike via their Facebook profile.

Takafumi Iwasaki: Takafumi Iwasaki (岩崎 貴文 , Iwasaki Takafumi ) is a Japanese guitarist, lyricist, music arranger, and musical artist from Kumamoto Prefecture.  He is signed to Columbia Music Entertainment, for which he is known for writing and performing various anime and tokusatsu theme songs.  He is known for his solo performance of the theme song of "Mahou Sentai Magiranger" and for performing guitar for the "Dragon Ball Kai" theme songs "Dragon Soul" and "Yeah!  Break!  Care!  Break! ", which he also composed.  He is part of Columbia's Project.R group for Super Sentai theme songs.

Frat shag: The frat shag is a hair style associated with college students in the Southern United States, in which the hair extends to the eyebrows and past the ears of an individual.  The haircut is generally accomplished by initially fading up the sides of the head, and then thinning out the hair on the top of the head.  Over time, the hair on the sides of the head will grow faster than the top and will cover the ears.  The hair on the top of the head can be combed over in order to retain the conservative look of the hairstyle.

Break It/Get Myself Back: "Break It/Get Myself Back" is a double A-side single released by Japanese recording artist Namie Amuro.  It was released on July 28, 2010, through Avex Trax.  "Break It" was used in a Coca-Cola Zero commercial.  The song reached number three on Oricon's weekly chart.  The single has been certified Gold for shipment of 100,000 copies, as well as "Get Myself Back" being certified as a gold download to cellphones.

Supporting paragraphs: Wild (Namie Amuro song) Vidal Sassoon
Answer: the Bob cut