Hansen's Natural, the parent company that created Monster Energy Drinks, was founded in the 1930s as a family-run business that actually started off by making fruit juices. Though the company did experiment with sodas in the 1970s, they still stuck to their plan to create natural products throughout the next few decades.
Things took an unexpected turn when Hansen's decided to experiment with Monster Energy Drinks, launching the line in 2002, right as the energy drink market started to take off. Monster was extremely popular when it first launched and the company's profits soared beyond their expectations, upwards of $1.7 billion annually.
The ironic part of this story is that Monster is not exactly natural or incredibly healthy. The brand has 34 flavors, but any given can of the stuff can have upwards of 50 grams of sugar, and its sugar and caffeine content can be dangerous if consumed in excess, particularly in combination with underlying health problems.