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Rapper and actor Chris "Ludacris" Bridges is clearing the air about why he uses his full name as well as his rap moniker when starring in films. 

On Wednesday's episode of ABC's "Jimmy Kimmel Live," Ludacris revealed that he's been going by the name since he penned his first rap lyric at age nine.  The rapper admitted that in his first song he had to lie about his age because it contained the rhyme "I'm cool, I'm bad, I might be ten, but I can't survive without my girlfriend."  When host Jimmy Kimmel asked him how he even knew what the word "ludicrous" meant at age nine, Luda admitted that he had to look it up in the dictionary.   

Ludacris also touched on his tradition of buying a vehicle from each "Fast and Furious" film he's starred in.  While he bought cars from "2 Fast 2 Furious" and "Fast Five," Luda admitted that he had to break his custom.  He said he refrained from buying one of the new film's vehicles because they shot the movie in London, where the steering column is on the right side.  He says the change would likely confuse him.  "Fast & Furious 6" also stars Vin Diesel, Paul Walker, Dwayne Johnson and Jordana Brewster.  The film hits theaters this weekend.