Go Ranger

http://www.youtube.com/watch?v=rySXoOrAczQ&feature=related

Greeting song

Nice little song for greetings
http://www.youtube.com/watch?v=sdsr5iSsJiw

Counting from 1 to 2000

Counting from 1 to 2000, this guy becomes dumb when the number has 3 or is a multiple of 3; and becomes dog-ish when it's a multiple of 5.
http://www.youtube.com/watch?v=QaWlsQ4hxZg&feature=player_detailpage#t=12s