she recorded a duet with Jackie Chan of the Irving Gordon song "Unforgettable" for a record of unlikely collaborations, When Pigs Fly: Songs You Never Thought You'd Hear. In 2005, she appeared on Dar Williams' record My Better Self, duetting on William's cover of Pink Floyd's "Comfortably Numb". She performed with Cyndi Lauper on "Sisters of Avalon" a track from Lauper's 2005 The Body Acoustic album. In 2006, she produced Hamell on Trial's album Songs for Parents Who Enjoy Drugs. In 2008, she appeared on Todd Sickafoose's album Tiny Resisters. In 2010, she co-produced a track with Margaret Cho called "Captain Cameltoe" for the comedian's Cho Dependant album. In 2011, she appeared on Rob Wasserman's album Note of Hope, an exploration of the writings of Woody Guthrie with musical accompaniment, though the track in which she appeared, "Voice", was actually recorded 13 years earlier. Also in 2011 she duetted with Greg Dulli on the Twilight Singers record Dynamite Steps. Other artists have covered and sampled DiFranco's work throughout the years. Her spoken word poem "Self Evident" was covered by Public Enemy founder Chuck D's group called Impossebulls. Alana Davis had some commercial success with DiFranco's song "32 Flavors". Samples from the track "Coming Up" were used by DJ Spooky in his album Live Without Dead Time, produced for AdBusters Magazine in 2003. In 2010, DiFranco played Persephone on Anaïs Mitchell's album Hadestown. DiFranco was approached by Zoe Boekbinder to work on their Prison Music Project, an album of collaborations between incarcerated and formerly incarcerated writers and musicians on the outside. DiFranco co-produced the project with Boekbinder and co-wrote and performed "Nowhere but Barstow and Prison." The album Long Time Gone was released on Righteous Babe Records in 2020 after ten years in the making. Lyrical content Although much of DiFranco's material is autobiographical, it is often also strongly political. Many of her songs are concerned with contemporary social issues such as racism, sexism, sexual abuse, homophobia, reproductive rights, poverty, and war. In 2008, she donated a song to Aid Still Required's CD to assist with the restoration of the devastation done to Southeast Asia from the 2004 tsunami. The combination of personal and political is partially responsible for DiFranco's early popularity among politically active college students, particularly those of the left wing, some of whom set up fan pages on the web to document DiFranco's career as early as 1994.