In an interview with YouTube about Teenage Dream in August 2010, Perry revealed that "Hummingbird Heartbeat" was one of the first songs she wrote for the album after she finished her Hello Katy Tour (2009).
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From February 20, 2011 to January 22, 2012, Perry embarked on the California Dreams Tour, where she performed "Hummingbird Heartbeat".
Heartbeat (UK TV series) | Heartbeat | hummingbird | heartbeat | White-throated Hummingbird | Every Heartbeat | Miss You in a Heartbeat | Hummingbird | Heartbeat Records | Violet-capped Hummingbird | Uncovered by Heartbeat | The Left-Handed Hummingbird | Swallow-tailed Hummingbird | Ruby-throated Hummingbird | ruby-throated hummingbird | Mangrove Hummingbird | Magnificent (Rivoli's) Hummingbird | List of Heartbeat characters | Irish Heartbeat | Giant Hummingbird |