Question 981: His son sings the Eminem song

Starting of the new year with a wacky question. Here goes:

In 1997, a 17-year-old student recorded himself impersonating the noises produced by internal combustion engines. He posted this on a website and caught the attention of a Swedish television researcher, who convinced him to perform the sound live on air. After it debuted on television, recordings of his performance began appearing on file sharing networks and various websites.

In late 2003, another Swede encountered the sound effect and, not knowing about the previous incarnations of the sound, was inspired to create the animated character "The Most Annoying Thing"(as it called then) to accompany it. He worked on the first animation in his spare time and posted it on his website and on the CGTalk forum.

What animated character was created as a result?

Answer: Crazy Frog