"Angry Birds Theme" is a song composed by Ari Pulkkinen for Rovio Entertainment's Angry Birds in 2009, where it is used for the title screen and quoted in a few small jingles. It is an upbeat track with Eastern European elements, incorporating instruments such as xylophones, accordions, mandolins, and agogo bells.
With the great popularity of the original Angry Birds, the track has since become representative of the series and one of the most popular songs from mobile games as a whole. Most games and material in the Angry Birds franchise have featured new renditions of the song, many of which were arranged or supervised by Pulkkinen himself, such as Angry Birds Seasons and Angry Birds Space.