Tug of war, also known as tug o' war, tug war, rope war, rope pulling, or tugging war, is a sport that directly pits two teams against each other in a test of strength. The phrase may also be used as a metaphor to describe a demonstration of brute strength by two opposing groups, such as a rivalry between two departments of a company. In this scenario, there is often a third party who is considered the "rope" in the tug of war.

The origins of tug of war are uncertain, but it is beyond dispute that this once royal sport was practiced in ancient Egypt and China, where it was held in legend that the Sun and Moon played Tug of War over the light and darkness.

According to a Tang dynasty book, The Notes of Feng, tug of war, under the name "hook pulling"(牵钩), was used by the military commander of the State of Chu during the Spring and Autumn Period (8th century BCE to 5th century BCE) to train warriors. During the Tang dynasty, Emperor Xuanzong of Tang promoted large-scale tug of war games, using ropes of up to 167 meters with shorter ropes attached and more than 500 people on each end of the rope. Each side also had its own team of drummers to encourage the participants.

Carly Rae Jepsen (born November 21, 1985) is a Canadian recording artist and singer-songwriter from Mission, British Columbia. In 2007, she placed third in the fifth season of Canadian Idol, and was a part of the Canadian Idol Top 3 concert tour.

Shortly after competing on Idol, she signed to Fontana and MapleMusic, and released her debut album, Tug of War, on September 30, 2008. Three years later, she released a new single, entitled "Call Me Maybe", which was released by 604 Records, and was followed by the release of her debut extended play, Curiosity, on February 14, 2012. "Call Me Maybe" was met with much success, reaching the Top 5 on the Billboard Hot 100 and reaching the number 1 spot on the Canadian Hot 100. The single also went to number 1 in Australia, Ireland and the United Kingdom. Jepsen signed with Interscope Records in 2012.

Jepsen attended Heritage Park Secondary School in Mission, British Columbia and has since performed there post-graduation. She later attended the Canadian College of Performing Arts in Victoria, BC before auditioning for Canadian Idol. After completing the Canadian Idol tour, Jepsen retreated to B.C. to focus on writing, recording and completing her band. Her demos attracted attention and she was eventually signed a joint management deal with Simkin Artist Management and Dexter Entertainment. A deal with Fontana/Maple Music quickly followed, leading Jepsen into the studio with producer/writer Ryan Stewart.

Sir James Paul McCartney, MBE, Hon RAM, FRCM (born 18 June 1942) is an English musician, singer-songwriter and composer. Formerly of the Beatles (1960–1970) and Wings (1971–1981), he has been described by Guinness World Records as "The Most Successful Composer and Recording Artist of All Time", with 60 gold discs and sales of over 100 million albums and 100 million singles. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as a member of the Beatles, and with Lennon formed one of the most celebrated songwriting partnerships of the 20th century. After leaving the Beatles, he began a solo career and later formed the band Wings with his first wife, Linda Eastman, and singer-songwriter Denny Laine.

According to the BBC, his Beatles song "Yesterday" has been covered by over 2,200 artists—more than any other song. Wings' 1977 release, "Mull of Kintyre", became one of the best-selling singles ever in the UK, and he is "the most successful songwriter" in UK chart history, according to Guinness. As a songwriter or co-writer, he is included on thirty-one number one titles on the Billboard Hot 100, and as of 2012 he has sold over 15.5 million RIAA certified units in the United States.