"Hummingbird Heartbeat" is a song recorded by which American singer and songwriter, for her third studio album, "Teenage Dream" (2010)? 
Hummingbird Heartbeat: "Hummingbird Heartbeat" is a song recorded by American singer Katy Perry for her third studio album, "Teenage Dream" (2010). Katy Perry: Katheryn Elizabeth Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer and songwriter.
i don't know