The President of the United Mexican States (Spanish: Presidente de los Estados Unidos Mexicanos) is the head of state and government of Mexico. Under the Constitution, the president is also the Supreme Commander of the Mexican armed forces. The current President is Felipe Calderón.

Currently, the office of the President is considered to be revolutionary, in that it is the inheritor of the Mexican Revolution and the powers of office are derived from the Revolutionary Constitution of 1917. Another legacy of the Revolution is its ban on re-election. Mexican presidents are limited to a single six-year term, called a sexenio. No one who has held the post, even on a caretaker basis, is allowed to run or serve again. The constitution and the office of the President closely follow the presidential system of government.

Chapter III of Title III of the Constitution deals with the executive branch of government and sets forth the powers of the president, as well as the qualifications for the office. He is vested with the "supreme executive power of the Union."

Mexico (ⁱ/ˈmɛksɨkoʊ/; Spanish: México, IPA: [ˈmexiko] ( listen)), officially the United Mexican States (Spanish:  Estados Unidos Mexicanos (help·info)), is a federal constitutional republic in North America. It is bordered on the north by the United States of America; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of Mexico. Covering almost two million square kilometres (over 760,000 sq mi), Mexico is the fifth largest country in the Americas by total area and the thirteenth largest independent nation in the world. With an estimated population of over 113 million, it is the eleventh most populous country and the most populous Spanish-speaking country. Mexico is a federation comprising thirty-one states and a Federal District, the capital city.

In Pre-Columbian Mexico many cultures matured into advanced civilizations such as the Olmec, the Toltec, the Teotihuacan, the Zapotec, the Maya and the Aztec before the first contact with Europeans. In 1521, Spain conquered and colonized the territory from its base in México-Tenochtitlan, which was administered as the Viceroyalty of New Spain. This territory would eventually become Mexico as the colony's independence was recognized in 1821. The post-independence period was characterized by economic instability, the Mexican-American War and territorial cession to the United States, a civil war, two empires and a domestic dictatorship. The latter led to the Mexican Revolution in 1910, which culminated with the promulgation of the 1917 Constitution and the emergence of the country's current political system. Elections held in July 2000 marked the first time that an opposition party won the presidency from the Institutional Revolutionary Party.

Justin Drew Bieber ( /ˈbiːbər/ BEE-bər, born March 1, 1994) is a Canadian Pop/R&B singer-songwriter, musician, and actor. Bieber was discovered in 2008 by Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Braun arranged for him to meet with Usher in Atlanta, Georgia, and Bieber was soon signed to Raymond Braun Media Group (RBMG), a joint venture between Braun and Usher, and then to a recording contract with Island Records offered by L.A. Reid. Bieber's debut single, "One Time", was released in 2009 and peaked in the top twenty in Canada and charted in the top thirty in several international markets. His debut album, the seven-track EP My World, followed in November 2009, and was soon certified platinum in the United States. He became the first artist to have seven songs from a debut album chart on the Billboard Hot 100.

Enrique Peña Nieto (born July 20, 1966) is a Mexican politician. A member of the Institutional Revolutionary Party (Partido Revolucionario Institucional, PRI), he served as governor of the State of Mexico from 2005 to 2011. On September 19, 2011, he announced his candidacy in the 2012 Mexican presidential election to succeed Felipe Calderón, and formally registered his candidacy on November 27, 2011.

Peña Nieto was born at Atlacomulco in Mexico State. His father, Gilberto Enrique Peña del Mazo, worked for the Comisión Federal de Electricidad and his mother, María del Perpetuo Socorro Ofelia Nieto Sánchez, was a school teacher. Peña is related to several politicians: Severiano Peña, mayor of Acambay in 1914, 1916, 1921 and 1923; Alfredo del Mazo González, former governor; and Arturo Montiel Rojas, also former governor. In 1993, Peña married his first wife Mónica Pretelini with whom he had three children: Paulina, Alejandro and Nicole. Pretelini died on January 11, 2007 due to an epileptic episode. In 2008, Peña Nieto announced publicly in a TV show his romantic relationship with Televisa soap opera actress Angélica Rivera. Rivera and Peña Nieto married on November 27, 2010 in Toluca.

Enrique Peña Sánchez (Puerto Padre, Las Tunas Province, 17 July 1880 – Havana, 13 April 1922) was a leading Cuban cornet player, orchestra leader and composer.

Born in a small town in the old province of Oriente, Peña studied with Marcos González and José Santos Betancourt. In 1902 he moved to Havana, and founded the band La Juventud, with himself as director and cornet, Rogelio Solis (double bass), Félix González (figle), José Belén Puig (first clarinet), José Urfé (second clarinet), José de los Reyes (kettle drum) and Rufino Cárdenas (güiro). This band had several members who became well known; Puig went on to become a famous leader of his own charanga. The band functioned until 1906.

His second band was called the Orquesta típica de Enrique Peña. Its line-up was Peña (cornet); Antonio González (trombone); Féliz González (figle); José Belén Puig (1st clarinet); José Urfé (2nd clarinet); Julián Barreto (violin); Alfredo Sáenz (violin); José de los Reyes (tympani); Rufino Cárdenas (güíro) and unknown (double bass). This orchestra became famous for being the first to play El bombín de Barreto (Barreto's bowler hat), written by Urfé, which was supposedly the first danzón to incorporate a syncopated third part, influenced by the son. The group recorded about 150 numbers, some of which are available on CD.