Warsaw (Polish: Warszawa [varˈʂava] ( listen); see also other names) is the capital and largest city of Poland. It is located on the Vistula River, roughly 260 kilometres (160 mi) from the Baltic Sea and 300 kilometres (190 mi) from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most populous city proper in the European Union. The area of the city covers 516.9 square kilometres (199.6 sq mi), while the city's agglomeration covers 6,100.43 square kilometres (2,355.39 sq mi).

Warsaw is an Alpha- global city, a major international tourist destination and an important economic hub in Central Europe. It is also known as the "phoenix city" because it has survived many wars throughout its history. Most notably, the city had to be painstakingly rebuilt after the extensive damage it suffered from World War II, during which 80% of its buildings were destroyed. On 9 November 1940 the city was awarded Poland's highest military decoration for heroism, the Virtuti Militari, for the Siege of Warsaw (1939).

"Pumped Up Kicks" is a song by American indie pop band Foster the People. It was released as the group's debut single in September 2010, and the following year was included on their EP Foster the People and their debut album Torches. "Pumped Up Kicks" became the group's breakthrough hit and was one of the most popular songs of 2011. The song was written and recorded by frontman Mark Foster while he was working as a commercial jingle writer. Contrasting with the upbeat musical composition, the lyrics describe the homicidal thoughts of a troubled youth.

The track received considerable attention after it was posted online in 2010 as a free download, and it helped the group garner a multi-album record deal with Columbia Records imprint Startime International before they had issued a commercial release. The song became both a crossover hit and a sleeper hit in 2011, as it received significant airplay on modern rock and contemporary hit radio stations. The song spent eight consecutive weeks at number three on the Billboard Hot 100 chart in the United States, making it the first Billboard Alternative Songs number-one single to crack the U.S. top 5 since Kings of Leon's "Use Somebody" in 2009. The song was widely praised by critics, and it has been licensed for use in a wide range of popular media since its release. "Pumped Up Kicks" received a Grammy Award nomination for Best Pop Duo/Group Performance.

"Helena Beat" is a song by American indie pop group Foster the People. It is the opening track from their debut studio album Torches and was released as the record's second single. It was solicited to radio on July 26, 2011, and solicited to radio in the United Kingdom on September 5, 2011. On August 10, 2011, BBC Radio 1 DJ Greg James selected the song as his Record of the Week.

It was announced in January 2012 that "Helena Beat" was the most-played track on Australian radio station Triple J in 2011. The song appeared at number 15 on the Triple J Hottest 100, 2011 poll. "Helena Beat" was the fifth most streamed song of 2011 on Spotify.

"Helena Beat" was written by the group's lead songwriter Mark Foster to embody the attitude of the drug culture within Hollywood. Foster says the lyrics—the line "yeah its okay, I tie my hands up to a chair so I don't fall that way" in particular—are meant to express the nonchalant attitude that people had to their destructive tendencies. He said, "They're the young, hot, up and coming, powerful people that are gonna run the world. But they're just going out and doing drugs every night. They're saying it with this big smile of their face like 'I'm great, everything's great,' 'but don't you see that you're completely out of your mind on drugs right now that you can't even stand?'." The title of the song is derived from an ex-girlfriend of Foster's that used to party heavily.

The Prodigy are an English electronic dance music group formed by Liam Howlett in 1990 in Braintree, Essex. Along with Fatboy Slim, The Chemical Brothers, and other acts, The Prodigy have been credited as pioneers of the big beat genre, which achieved mainstream popularity in the 1990s and 2000s. They have sold over 25 million records worldwide. The group has won numerous music awards throughout their career, including two Brit Awards—winning Best British Dance Act twice, three MTV Video Music Awards, two Kerrang! Awards, five MTV Europe Music Awards, and have twice been nominated for Grammy Awards.

The group's brand of music makes use of various styles ranging from rave, hardcore techno, industrial, and breakbeat in the early 1990s to big beat and electronic rock with punk vocal elements in later times. The current members include Liam Howlett (keyboardist and composer), Keith Flint (dancer and vocalist), and Maxim (MC and vocalist). Leeroy Thornhill (dancer and very rarely a live keyboardist) was a member of the band from 1990 to 2000, as was a female dancer and vocalist called Sharky who left the group during their early period. The Prodigy first emerged on the underground rave scene in the early 1990s, and have since then achieved immense popularity and worldwide renown.