A day in the life of Genius' Rob Markman, whose job working with artists may be one of the coolest gigs in music right now

The music annotation website once known as Rap Genius has expanded radically since three Yale alums launched it in 2009.

Today, the re-branded Genius.com hosts crowdsourced annotations of a wide variety of written materials, including song lyrics, news stories, Shakespeare plays, and even the internet itself. But the site's recent expansion into video and other media platforms has produced some of its most compelling content yet.

Far from its humble beginnings as a lyrics site, Genius now regularly attracts high-profile artists for guest annotations and new projects. The site's artist relations team, Rob Markman and Brian Hernandez, works to facilitate inventive multimedia features with some of the biggest names in music. That means a typical day of work might mean meeting with top artists like Lil Wayne and Christina Aguilera, hanging out at recording studios, and getting backstage access to concerts.

Business Insider shadowed Markman, Genius' head of artist relations and a veteran music journalist, as he and his team produced the first installment of their brand new "IRL" video series, featuring an epic interview with producer and rap mogul DJ Khaled.

Take a behind-the-scenes look at Markman's incredible job at Genius: