"[3] During the writing and recording sessions of Mylo Xyloto, the song took on other names, such as "Cartoon Heart", before eventually being titled "Charlie Brown".

[6] Coldplay first performed "Charlie Brown" at a "friends and family" gig at The Forum, Kentish Town, London on 31 May 2011.

[9] BBC music called Charlie Brown "one of those Coldplay-patented sun-breaking-through-clouds moments" and gave praise to Buckland's guitar riff.

"[11] Under The Radar praised the song and said "Mylo Xyloto's finest anthem, 'Charlie Brown,' shoots for The Suburbs with the clumsy line 'Stole the key/took a car downtown to where the lost boys meet/took what they offered me' but redeems itself with a massive, ascending guitar hook that I can't help feeling would have sound-tracked any climactic scene from Friday Night Lights beautifully.

"[14] "Charlie Brown" was chosen as ESPN's title song for the commercials, promotion, and introduction videos of its coverage of Euro 2012.

[15] Coldplay performed the song at the 2012 BRIT Awards' opening segment and it subsequently climbed up to number 30 in the UK Singles Chart.

[17] On 6 December 2011 Coldplay uploaded a promotional, music video for "Charlie Brown" to their official YouTube account, which utilised footage from a collection of concerts they had performed throughout the band's 2011 Summer Festival Tour.

[18] The official music video for "Charlie Brown", to which Champion was referring was filmed with director Mat Whitecross throughout November and December 2011.