Raise your SOLO cup.....

The investor of arguably the most famous cup in the world has died.

Robert Leo Hulseman, who invented the Red Solo Cup, such a popular party staple it even has its own hit song by Toby Keith, died December 21 age 84 surrounded by his large family in Northfield, Illinois.

Hulseman worked at Solo Cup Company for 60 years, according to his obituary.

His father, Leo Hulseman, invented a solo cup, a paper cup he made in his home and sold to water companies in the 1930s. It's unclear whether this is the first party cup, but Solo Cup spokesperson Kim Healy said in 2011 it was 'one of the first,' according to Slate. 

In 2004, Solo Cup acquired Sweetheart, another cup company, but founded on $1.1 billion in debt, with Moody's lowering the credit rating on its bond, according to Forbes.

In 2012, the company was acquired for around $1billion by Dart Company. 

Hulseman had 10 children, nine of whom survive him. He is also survived by his wife of 60 years, Sheila.