In 2019, Little's 178-song catalogue made more than $5.8 million.
His songs have amassed more than 15-billion streams globally, making his catalogue one of the most streamed of the last decade.
It's a move Hipgnosis has been keen on for a while, calling Little an "important" player in the music industry. Industry insiders have suggested the deal is likely to be worth millions.
"Joel is one of the most important songwriters in the world today," Hipgnosis Songs Fund
founder Merck Mercuiadis said.
Mercuiadis has previously worked with Elton John, Guns N' Roses and Beyonce.
Hipgnosis Songs Fund is a Guernsey-registered music IP investment and song management company founded by Merck Mercuriadis and Nile Rodgers in 2018.
The company purchases songs or catalogues as an investment, similar to how oil or gold operates.
In addition to acquiring songs and songwriter catalogues, the company manages the playlist, cover, interpolation, and synchronisation revenues of its intellectual property.
It will take a percentage of both the writer's and publisher's share.