WATCH: Hot Dr. Pepper is a blast from the past

We all know egg nog, hot cocoa, and hot apple cider are the big Christmas drinks, but have you ever heard of Hot Dr. Pepper?

In the 1960's, Dr. Pepper tried to convince people to heat up some soda and pour it over a think slice of lemon for their cold weather treat. They claimed it was the hot holiday idea that pleased everyone!

Apparently the drink was able to catch on in the South, which makes sense. Once the Dr. Pepper is heated up, it turns into a liquid similar to a hot sweet tea.

In the 60's, many people added a splash of rum to the drink, which turned it into a cocktail they called the "Boomer".

It was good enough for Dick Clark, so why not try it?