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1.
A line added to the end of the Happy Birthday song. It most likely started from a Channel 4 TV station (Duh) in some part of the country. Kids in Western Pennsylvania don't have a Channel 4, but will sing this in school or during parties.
Happy birthday to you, Happy birthday to you, Happy birthday dear Jennifer, Happy birthday to you. And many mooooore, from channel Fooooouuuuur.....

"Happy birthday to you, and many more from channel four." while other kids are singing "Happy birthday to you, you look like a monkey, and you smell like one too."
by Not a Kid Anymore January 25, 2008