Mariah Carey, Robin Thicke, and Mary J. Blige made the late-night talk show rounds on Thursday (Dec. 17). Mariah performed “It’s a Wrap” during an encore appearance on “Lopez Tonight,” Thicke suited up for “Sex Therapy” on “The Tonight Show with Conan O’Brien,” and Mary J. Blige sang “I Am” on “The Jay Leno Show.”