They're the most genuine, earnest and badass hip hop group I know of (and also one of the most prolific with 12 studio albums, a Gramy and 6 Grammy nominations). If you're looking to get into them, I'd suggest starting with Game Theory, then moving on to Things Fall Apart and How I Got Over. If you dig, get Organix, their first full length. If all goes according plan, it'll slap you in the face with funk.
Now on to the main point of this post. The Roots recently paired up with funk manic John Legend for an album of politically charged 60s and 70s funk covers titled Wake Up. NPR is streaming the entire album for free if you care to check it out. It's really great, especially "Compared To What." More funk than I could ever handle.
To top it all off, JL and The Roots decided to do a cover of Arcade Fire's "Wake Up," off their 2004 full-length Funeral.
Check it, so much soul. And you'll rarely find r&b and hip hop acts covering british indie rock, so soak it up.
And how could I forget to mention ?est Love, The Roots' fro-laden beatmaster. Check how much love he puts into that kit. We need more drummers like him.