The A Rush of Blood to the Head Tour was the second concert tour undertaken by British rock band Coldplay. It was launched in support of their second studio album A Rush of Blood to the Head. They performed a total of 152 shows across Europe, Asia, Oceania and the Americas. Between 21 and 23 July 2003, the band filmed Coldplay Live 2003 at the Hordern Pavilion, Sydney. Background Overall, Coldplay's concerts during this period showcased its progression as a bona fide live act. The band began playing more shows in arenas and amphitheatres, moving away from the club venues that dominated earlier tours. Shows also had more elaborate stage and lighting effects. For example, strobe lighting for the song "Daylight" featured the image of a rotating sun superimposed over the stage. Taking a cue from U2's Elevation Tour and Nine Inch Nails' Fragility Tour, Coldplay also adopted a series of back screens that displayed video footage of each band member simultaneously. Other highlights included: Lead singer Chris Martin sang with Ron Sexsmith on the track, "Gold in Them Hills" during the headline set. An ambient, instrumental introduction before the start of "Politik" for every show. This can particularly be heard on the Live 2003 DVD. Note: Not the same as the Brian Eno introduction sometimes used before this intro. Guitarist Jonny Buckland regularly played a harmonica solo on the track "Don't Panic". He tossed the harmonica into the crowd after the solo's completion. Buckland also performed an original electric guitar introduction for the track. The aforementioned back screens were unfurled mid-concert, usually during the beginning of "One I Love". At some shows, Martin sang lyrics after inhaling from a helium balloon. Martin usually wore a Make Trade Fair T-shirt during 2002 shows to promote the Oxfam campaign. Make Trade Fair booths were present at venues, where concert-goers could sign petitions and learn about the campaign's objectives. An specially created, ambient introduction for "Yellow", featuring a dark and gloomy tone. Martin sings the lyrics, "Your skin... Oh-oh-oh..." during the introduction, which afterwards leads to the regular start of the song. Opening acts Most of the tour included at least one supporting act on each concert, with English singer Richard Hawley opening all performances held between 19 and 28 June 2002. Except for the show at Rome's Valle Giulia (which had The Music), all dates from 30 June to 12 July