By now it's widely known that Jimmy Fallon loves all things hip-hop, especially when it comes to his late-night show, 'The Tonight Show Starring Jimmy Fallon.' On Tuesday (Oct. 28), the host welcomed actor Daniel Radcliffe to perform (amazingly) Blackalicious' 'Alphabet Aerobics,' a song in which group member Gift of Gab raps each letter of the alphabet. Radcliffe killed it.

"Artificial amateurs aren't at all amazing, analytically I assault animate things / Broken barriers bounded by the bomb beat / Buildings are broken, basically I'm bombarding casually create catastrophes, casualties / Canceling cats, got their canopies collapsing," rapped the 'Harry Potter' star, as he completed the rhyme all the way to Z, while maintaining solid flow and good wordplay.

Fallon made the skit even better by holding a sign of each letter Radcliffe was rapping, and bounced around in his usual hyper and frenetic way. Great entertainment.

During his interview, the 25-year-old, who will be starring in two new films in 2015, said he's always been a big rap fan, and loves artists like Eminem and England's Plan B.

"Initially I got into Eminem... I was the first kid in my class to learn all the words to 'Real Slim Shady.' I've always had kind of an obsession with memorizing complicated lyrically intricate and fast songs I guess. It's a disease," he said.