Rapper Ludacris has stuck to his promise to give away 20 free cars to fans who wrote emotional letters explaining why they deserved a new vehicle.

The generous star, real name Christopher Bridges, kicked off celebrations for LudaDay Weekend in Atlanta, Georgia on Thursday (03Sep09) by inviting local residents to write in and tell him why they deserved the keys to a new Nissan vehicle.He received around 4,000 written responses to the Stars for Cars giveaway and handpicked the 20 lucky winners after reading through the masses of emails sent in via his Ludacris Foundation website.Presenting the prizes to the stunned new car owners on Sunday (06Sep09), Ludacris revealed he was particularly touched by the tragic tale of Mading Duor.Duor, a refugee from war-torn Sudan, told how he fled his homeland after his mother, father and five siblings were killed. He moved to the U.S. in 2003, but more tragedy struck when his son was fatally hit by a drunk driver in Atlanta.Ludacris told the crowd, His story touched my heart. He's endured so much in his life and he's still here standing. I'm very proud to have helped him.And Duor, who works in a school, still can't believe his luck: I'm so happy that I'm nervous. When I look at my new car, I say to myself, 'Is this really happening?'