In 2007, Peters helped the Broadway community celebrate the end of the stagehand strike in a "Broadway's Back" concert at the Marquis Theatre. In 2008, she was one of the participants in a fund-raiser for the Westport Country Playhouse, and in the opening ceremony and dedication of the renovated TKTS discount ticket booth in Times Square. That year, she also presented New York City Mayor Michael Bloomberg with the Humanitarian Award at the Breast Cancer Research Foundation awards. On March 8, 2009, she helped celebrate the last birthday of Senator Ted Kennedy (singing "There Is Nothin' Like a Dame") in a private concert and ceremony held at the Kennedy Center, hosted by Bill Cosby, with many Senators, Representatives, and President Barack and First Lady Michelle Obama in attendance. On November 19, 2009, she helped to celebrate the opening of The David Rubenstein Atrium at Lincoln Center.