In 2013, Singer executive produced with Sheila Nevins, HBO, and Jessica Kingdon the documentary "", directed by Alex Gibney. In 2012 the film won the Grierson Award at the London Film Festival and it also won the Chicago International Film Festival's award. In 2013, the film won the Best Feature Documentary category in the Irish Film and Television Awards. In the United States, the film was nominated for five prime-time Emmy awards; it won three: "Exceptional Merit in Documentary Film Making", "Outstanding Writing", and "Best Editor". The film was short-listed for the Academy Awards in 2013 and was nominated for a Writers Guild Award. In 2014 the documentary was awarded a Peabody Award. In 2017 she narrated the documentary “God Knows Where I Am” which won 17 film festivals, an Emmy and was on Netflix in 2019. She also performed “ Linda's Song” with Paul Cantelone for the soundtrack of the film.