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.

Xi Jinping (pronounced [ɕǐ tɕînpʰǐŋ] English approx.:SHEE JIN PING; born 1 June 1953) is a high-ranking politician of the People's Republic of China. He currently serves as the top-ranked member of the Central Secretariat of the Communist Party of China, the country's Vice President, Vice-Chairman of the Central Military Commission, President of the Central Party School and the 6th ranked member of the CPC Politburo Standing Committee, China's de facto top power organ.

Son of communist veteran Xi Zhongxun, Xi Jinping served mostly in Fujian province in his early career. He was later appointed party chief of the neighboring Zhejiang province, and then was appointed as Shanghai's party chief following the dismissal of Chen Liangyu. Known for his tough stance on corruption and a frank openness about political and market economy reforms, Xi's combination of positions makes him the presumptive heir to current General Secretary and President Hu Jintao and the Paramount leader of the Communist Party of China's fifth generation of leadership.

Peng Liyuan (simplified Chinese: 彭丽媛; traditional Chinese: 彭麗媛; pinyin: Péng Lìyuán; born on November 20, 1962) is one of the top Chinese folk music singers, and a performer popularized by her regular appearances on the annual CCTV New Year's Gala, a widely viewed mainland Chinese television program that airs during Chinese New Year. She has obtained many honors in singing competitions nationwide.

Her most famous works include People from our Village (父老乡亲), Mount Chomolungma (珠穆朗玛) and On the Plains of Hope (在希望的田野上). Peng Liyuan is a civilian member of China's People's Liberation Army and currently holds the civilian rank comparable to that of a major general. She was one of the first in China to obtain a Master's degree in traditional ethnic music when the degree was first established in the 1980s. She is married to Xi Jinping who is the current member of the Politburo Standing Committee and the Vice President of the People's Republic of China. Xi is widely expected to become China's president in 2013, which will make Peng Liyuan China's first lady.