Red Square (Russian: Красная площадь, tr. Krásnaja Plóščaď; IPA: [ˈkrasnəjə ˈploɕːətʲ]) is a city square in Moscow, Russia. The square separates the Kremlin, the former royal citadel and currently the official residence of the President of Russia, from a historic merchant quarter known as Kitai-gorod. As major streets of Moscow radiate from here in all directions, being promoted to major highways outside the city, Red Square is often considered the central square of Moscow and all of Russia.

The rich history of Red Square is reflected in many artworks, including paintings by Vasily Surikov, Konstantin Yuon and others. The square was meant to serve as Moscow's main marketplace. It was also used for various public ceremonies and proclamations, and occasionally as the site of coronation for Russia's Tsars. The square has been gradually built up since that point and has been used for official ceremonies by all Russian governments since it was established.

The name Red Square derives neither from the colour of the bricks around it (which, in fact, were whitewashed at certain points in history) nor from the link between the colour red and communism. Rather, the name came about because the Russian word красная (krasnaya) can mean either "red" or "beautiful" (the latter being rather archaic; cf. прекрасная, prekrasnaya). This word, with the meaning "beautiful", was originally applied to Saint Basil's Cathedral and was subsequently transferred to the nearby square. It is believed that the square acquired its current name (replacing the older Pozhar, or "burnt-out place") in the 17th century. Several ancient Russian towns, such as Suzdal, Yelets, and Pereslavl-Zalessky, have their main square named Krasnaya ploshchad.

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.