Crazy Frog

Crazy Frog, originally known as The Annoying Thing, is a Swedish computer-animated character created in 2003 by Swedish actor and playwright Erik Wernquist. Marketed by the ringtone provider Jamba!, the animation was originally created to accompany a sound effect produced by Australian singer songwriter Sav Martino and Daniel Malmedahl in 1997 while attempting to imitate the sound of a two-stroke engine.