Footage of R&B singer LeToya Luckett and Ludacris on the set of the video shoot for 'Regret' has hit the 'net, courtesy of HipHollywood.com. Ludacris joins the songbird on her latest single, which he admits was already hot before he added his touch to it. Luckett discusses her upcoming projects in the behind the scenes footage, including two films set to drop next year. Luckett will star alongside crooner Tank in 'Preacher's Kid' and 'Killers' with Ashton Kutcher and Katherine Heigl.