As if all this was not enough, Carter decided to do a variety of theater projects. From September to November 2005, Carter played "Mama Morton" in the West End London production of Chicago. In 2006, her rendition of "When You're Good to Mama" was officially released on the Chicago: 10th Anniversary Edition CD box set. In May 2007, Carter began touring the U. S. with her one-woman musical cabaret show, An Evening with Lynda Carter. She played engagements at such venues as Feinstein's at Loews Regency in New York, Jazz at Lincoln Center, the Kennedy Center in Washington, D. C. , the Razz Room in San Francisco, and the Catalina Jazz Club in Los Angeles. In June 2009, her second album, At Last, was released and reached #10 on Billboard's Jazz Albums Chart. In June 2011, Carter released her third album, Crazy Little Things, which she describes as a delightful mix of standards, country, and pop tunes. In 2015, Carter wrote and recorded five original songs for the video game Fallout 4, in which she herself stars. An EP of the songs from the game's soundtrack was released on iTunes on November 6, 2015. The song "Good Neighbor" from the EP was nominated by NAVGTR for best song under the category of Song, Original or Adapted. In 2018, Carter released her fourth album titled Red, Rock n' Blues with her All-Star Band which featured two vocals with her daughter, Jessica Carter Altman.