Despite fighting with music publishers over rights and Google over online marketing tactics, Rap Genius have managed to add $40m worth of funding into the site, making the business worth around $1 billion. The Series B funding was led by Dan Gilbert and Adreesen Horowitz.

Despite some of the problems that Rap Genius has had over the past year or so, it seems to be going from strength to strength. Now, thanks to the funding, the site is expanding beyond rap to create, a "grand project, born from rap's rib, to annotate the world."

Early investor Ben Horowitz commented that "Genius does for everything what Rap Genius did for Rap."