West Coast rap veteran Murs began his heroic crusade to do the unthinkable on Wednesday (Oct. 12): break the Guinness World Record for the longest rap marathon by rapping for over 24 hours straight, promoting Boost Mobile’s Unlimited Music Streaming, featuring Slacker Radio. At 9 a.m. PST on Wednesday, Boost Mobile's Where You At LA? host embarked upon his quest, which included a rap karaoke tour de force the likes of which we've literally never seen before.

It's fitting that Murs would try to make rap history by functioning as a living, breathing museum for hip-hop. Over the course of a little more than 24 hours, Murs raps his way through just about every mid-1980s and 1990s rap classic in the book, showcasing an impressive mix of endurance and stylistic malleability in the process.

Throughout the marathon, the seemingly inexhaustible Murs effortlessly mimicked legendary rappers as he performed their timeless songs without missing a beat. When the laid-back instrumental for A Tribe Called Quest's "Bonita Applebum" begins, he takes on the nasally rasp of the group's front man Q-Tip. When the beat for Public Enemy's "Fight the Power" kicks off, he assumes Chuck D's husky, authoritative thump of a voice.

Of course, fans will also recognize the songs Murs performs from his own catalog as tracks like "L.A." and "God's Work" boom at different points during the marathon. Murs was as impressive as he was probably exhausted, but the Cali stalwart pressed on as he rapped his way into hip-hop immortality.

The rap marathon is an appropriately unique conclusion for the inaugural season of Murs and Boost Mobile's Where You At? LA event, which featured an interesting combination of performances and interviews from the likes of Dame Dash, YG, Casey Veggies, Tha Dogg Pound, Chef Roy Choi, B-Real, DJ Quik, W.C., Mike G of Odd Future, Problem and J-Boog.

To prepare for his record-breaking performance, Murs enlisted the help of his friend and producer Mr. Len, who helped coach him during six-hour training sessions in the days leading up to the moment of truth. Still, if Murs wants to blame someone for putting him through the enjoyable, but probably torturous experience, he needs only look in the mirror. He is, after all, the one who volunteered.

Even on a surface level, rapping for more than 24 hours is more than a little outrageous. However, when you breakdown the numbers, the feat becomes even more staggering. The average song is three minutes long, so each hour, Murs rapped about a lengthy album's worth of tracks -- roughly 20 songs, to be exact. That means Murs spit the equivalent of 480 songs in total. Now that's what we call passion.