is a song by the American rock band My Chemical Romance from their fourth studio album, Danger Days: The True Lives of the Fabulous Killjoys (2010).

was notably included as the opening song of the 2010 video game Gran Turismo 5, and appeared on May Death Never Stop You, the band's 2014 greatest hits album.

[1] Evan Sawdey of PopMatters additionally observed the stylistic influence of Britpop on the track, particularly noting similarities with the song "Girls & Boys" by Blur.

[15] Ben Hewitt of The Quietus additionally interpreted the song as being a "beacon of hope", due to its "proclamations of immortality" through lines like "I can't slow down" and "I'm undefeatable".

[17] On February 4, 2011, the band announced on their website that the song would officially be released as a single on March 21, 2011;[18][19] an accompanying "J-pop indebted" music video for "Planetary (Go!)"

was released on that day,[20][21] featuring a live recording of the band performing the track at Islington Academy overlaid by visual effects and "comic book-like text".

was notably included as the opening song of Gran Turismo 5, with Toro noting his love of the series and saying that the track "makes you want to drive faster".

[10][11] In contrast, Channing Freeman of Sputnikmusic called the song "awful", writing that the track "desperately wants to be emotional [...] but it falls flat on its face".

[36] Chloe Spinks of Gigwise placed the song at #28 (of 79) in her ranking of the band's entire discography, praising how it "feels like a party",[37] while Cassie Whitt and Richardson, writing for Loudwire, placed it at #45 (of 71).