A centenarian is a person who lives to or beyond the age of 100 years. Because current average global life expectancies are less than 100, the term is invariably associated with longevity. A supercentenarian is a person who has lived to the age of 110 or more, something only achieved by about one in 1,000 centenarians. Even rarer is a person who has lived to age 115; as of April 2012^[update], there are only 27 people in recorded history who have indisputably reached this age. In 2009, the United Nations estimated that there were 455,000 living centenarians worldwide.

The United States currently has the greatest number of centenarians of any nation, estimated at 70,490 on September 1, 2010. This corresponds to a national incidence of one centenarian per 4,400 people.

Japan has the second-largest number of centenarians, with an estimated 47,756 as of September 2011. Japan started its surveys in 1963, at which time the number of Japanese centenarians was found to be 153. This number surpassed the 10,000 mark in 1998, 20,000 in 2003, and 40,000 in 2009. According to a UN Demographic survey, Japan is expected to have 272,000 centenarians by 2050. However, some sources suggest that the number could be closer to 1 million. Many experts attribute Japan's high life expectancy to the Japanese diet, which is particularly low in refined simple carbohydrates, and to hygienic practices. In addition, the number of centenarians in relation to the total population was, in September 2010, 114% higher in Shimane Prefecture than the ratio for the whole of Japan. This ratio was also 92% higher in Okinawa Prefecture. In addition to diet, there are four other factors that have been found to increase the life expectancy for Okinawans, as noted later in the "research into centenarians" section of this article. The incidence of centenarians in Japan was one per 3,522 people in 2008, although Okinawa again exceeded this average, with one per 1,838 people in 2006.

Anthony Dominick Benedetto, better known as Tony Bennett (born August 3, 1926), is an American singer of popular music, standards, show tunes, and jazz. Bennett is also a serious and accomplished painter, having created works — under the name Benedetto — that are on permanent public display in several institutions. He is the founder of Frank Sinatra School of the Arts in New York City.

Raised in New York City, Bennett began singing at an early age. He fought in the final stages of World War II as an infantryman with the U.S. Army in the European Theatre. Afterwards, he developed his singing technique, signed with Columbia Records, and had his first number one popular song with "Because of You" in 1951. Several top hits such as "Rags to Riches" followed in the early 1950s. Bennett then further refined his approach to encompass jazz singing. He reached an artistic peak in the late 1950s with albums such as The Beat of My Heart and Basie Swings, Bennett Sings. In 1962, Bennett recorded his signature song, "I Left My Heart in San Francisco". His career and his personal life then suffered an extended downturn during the height of the rock music era.

Francis Albert "Frank" Sinatra,  /sɨˈnɑːtrə/, (December 12, 1915 – May 14, 1998) was an American singer and film actor.

Beginning his musical career in the swing era with Harry James and Tommy Dorsey, Sinatra became an unprecedentedly successful solo artist in the early to mid-1940s, after being signed to Columbia Records in 1943. Being the idol of the "bobby soxers", he released his first album, The Voice of Frank Sinatra in 1946. His professional career had stalled by the 1950s, but it was reborn in 1953 after he won the Academy Award for Best Supporting Actor for his performance in From Here to Eternity.

He signed with Capitol Records in 1953 and released several critically lauded albums (such as In the Wee Small Hours, Songs for Swingin' Lovers, Come Fly with Me, Only the Lonely and Nice 'n' Easy). Sinatra left Capitol to found his own record label, Reprise Records in 1961 (finding success with albums such as Ring-a-Ding-Ding!, Sinatra at the Sands and Francis Albert Sinatra & Antonio Carlos Jobim), toured internationally, was a founding member of the Rat Pack and fraternized with celebrities and statesmen, including John F. Kennedy. Sinatra turned 50 in 1965, recorded the retrospective September of My Years, starred in the Emmy-winning television special Frank Sinatra: A Man and His Music, and scored hits with "Strangers in the Night" and "My Way".