Year 1973 (MCMLXXIII) was a common year starting on Monday (link will display the full calendar) of the Gregorian calendar.

James Hillier Blount (born 22 February 1974), better known by his stage name James Blunt, is an English singer-songwriter and former army officer, whose debut album, Back to Bedlam and single releases, including "You're Beautiful" and "Goodbye My Lover", brought him to fame in 2005. His repertoire can be best described as a mix of acoustic-tinged pop, rock and folk. After recording on the independent American label Custard Records, Blunt won two Brit Awards, two MTV Video Music Awards, two Ivor Novello Awards, and by 2006 was nominated for five Grammy Awards. The following year, he released his second album All the Lost Souls (2007). Blunt's third studio album, Some Kind of Trouble, was released in November 2010. Worldwide, Blunt has sold over 18 million albums, and his debut album, Back to Bedlam, is the best-selling album of the 2000s in the UK.

Blunt was an officer in the Life Guards, a cavalry regiment of the British Army, and served under NATO in Kosovo during the conflict there in 1999. While posted to Kosovo, Blunt was introduced to the work of Médecins Sans Frontières (MSF or "Doctors Without Borders"). Since then, Blunt has supported MSF by holding meet-and-greet auctions at many of his concerts.

Ursula Andress (born 19 March 1936) is a Swiss actress and sex symbol of the 1960s. She is known for her role as Bond girl Honey Ryder in the first James Bond movie, Dr. No (1962), for which she won a Golden Globe. She later starred as Vesper Lynd in the Bond-parody Casino Royale (1967).

Andress was born in Ostermundigen, Canton of Bern, Switzerland, the daughter of Anna, who was Swiss, and Rolf Andress, a German diplomat who was expelled from Switzerland for political reasons. He disappeared during World War II.

Andress became famous as Honey Ryder, a shell diver and James Bond's object of desire in Dr. No (1962), the first Bond movie. In a well-known scene, she rises out of the Caribbean Sea in a white bikini. The scene made Andress the "quintessential" Bond girl, and is now considered iconic. "My entrance in the film wearing the bikini on that beautiful beach made me world famous as 'the Bond girl'", she said, and the bikini from this "classic moment in cinema and Bond history" sold for £35,000 at auction in 2001. In 2003, in a UK Survey by Channel 4, her entrance in Dr. No was voted #1 in "the 100 Greatest Sexy Moments".

Elvis Aaron Presley (January 8, 1935 – August 16, 1977) was one of the most popular American singers of the 20th century. A cultural icon, he is widely known by the single name Elvis. He is often referred to as the "King of Rock and Roll" or simply "the King".

Born in Tupelo, Mississippi, Presley moved to Memphis, Tennessee, with his family at the age of 13. He began his career there in 1954, working with Sun Records owner Sam Phillips, who wanted to bring the sound of African American music to a wider audience. Accompanied by guitarist Scotty Moore and bassist Bill Black, Presley was the most important popularizer of rockabilly, an uptempo, backbeat-driven fusion of country and rhythm and blues. RCA Victor acquired his contract in a deal arranged by Colonel Tom Parker, who would manage the singer for over two decades. Presley's first RCA single, "Heartbreak Hotel", released in January 1956, was a number one hit. He became the leading figure of the newly popular sound of rock and roll with a series of network television appearances and chart-topping records. His energized interpretations of songs, many from African American sources, and his uninhibited performance style made him enormously popular—and controversial. In November 1956, he made his film debut in Love Me Tender.

Felipe Pigna, born in Mercedes, Buenos Aires, in 1959, is an Argentine historian and writer. He is among the best selling book authors from Argentina.

Pigna teaches at the Escuela Superior de Comercio Carlos Pellegrini, directing the Ver la Historia project that produced 13 documentaries covering the 1776–2001 period of the History of Argentina. He is a columnist, appears on radio programs, and contributes to newspapers and magazines such as Noticias, Veintitrés and Todo es Historia.He is the director of Caras y Caretas magazine.

He has served as a history adviser for TV networks such as HBO, People and Arts, Italy's RAI, and Spain's Antena 3. He was a columnist of Historia Confidencial, an Argentine TV show.

Pigna is a CEO and writes for the historically-focused website El Historiador (The Historian). He is often seen in the media talking about historical subjects. He is the host of Vida y Vuelta, a television program of historical documentaries and interviews.

With Mario Pergolini, Pigna wrote, produced and hosted Algo habrán hecho por la historia argentina, a TV show aired in 2005 (and later released in a set of DVDs) which combines documentary, humor and free reenactments of historical events. The show granted him a Martín Fierro award, and in his acceptance speech he dedicated the prize to some of his historical national heroes, namely Mariano Moreno, Juan José Castelli, Manuel Belgrano and Manuel Dorrego.