CareerRaised in Detroit, Thomas learned piano and guitar as a child. She attended Calvary Chapel Bible College in Murrieta, California for a year before studying Theatre at Cornish College in Seattle.Through mutual friends she met Trey Many and began playing shows with Velour 100. They recorded one EP together and played a few short tours, where she met Damien Jurado and Pedro the Lion.Thomas' appearance on the song "Parking Lot", from Damien Jurado's album Ghost of David, brought her to the attention of famed record label Sub Pop who signed her in 2000. Her first recording for the label was a duet with Jurado on "Wages of Sin" on Badlands: A Tribute To Bruce Springsteen's Nebraska. Her debut album When We Were Small was released on January 22, 2001. The album featured Eric Fisher (who Thomas met at Cornish College) on guitar and keyboards and Andy Myers on drums. Fisher and Myers returned for 2003's follow-up Only with Laughter Can You Win.Thomas released her third album, If Songs Could Be Held, in 2005. In March 2006, she was invited by Toronto indie rock label Paper Bag Records to exclusively contribute to their See You on the Moon! compilation with her song "Faith's Silver Elephant".In April 2006, Pitchfork erroneously announced that Thomas and American musician Sufjan Stevens were having a baby together, but were forced to print a retraction. Denison Witmer and Thomas later admitted it was an April Fools' prank.Thomas' album, These Friends of Mine, was released on December 12, 2006, through her own record label Sing-A-Long Records. She released a holiday album called A Very Rosie Christmas in November 2008 through her own record label. Thomas also acted in the 2009 film Calvin Marshall and was the subject of the 2009 documentary All the Way from Michigan Not Mars. She suffered from a thyroid condition that affected her for two years, leading to a gap of four years until her next album With Love (2012). She also got married to folk singer Jeff Shoop in August 2008.Thomas toured with Sufjan Stevens in his 2012 Surfjohn Stephanopolous Seasonal Affective Disorder Disaster on Ice tour, opening the show as her Sheila Saputo character as well as performing as a member of his band.ComedyThomas also performs as a stand-up comedian as the character Sheila Saputo, an accident-prone pizza delivery person, with comparisons drawn with Gilda Radner and Andy Kaufman. She has performed stand-up as this character as part of her music shows.