On his fourth Def Jam South set, Ludacris proves he is more than just a rapper with witty punch lines. “The Red Light District” highlights the Atlanta native’s many skills. From his deft lyrical flow on “Large Amounts” to his old-school stylings on “Virgo,” which features Nas and Doug E. Fresh (and also appears on Nas’ “Street’s Disciple”), Ludacris is an MC of many talents. On lead single “Get Back,” he returns to the in-your-face party style that made “Move B***h” such a hit. “The Potion,” a Timbaland-produced club anthem, will also have heads nodding. The album’s smartest moment arrives via the Green Lantern-produced “Number One Spot.” Here, Ludacris extols the virtues of being one of hip-hop’s top dogs and name checks Austin Powers – while a sample from Quincy Jones’ “Soul Bossa Nova” (which served as all three films’ kitschy theme) plays on. – RH