text: Go Waggaloo, their first children's CD, was released in October 2009 on the Smithsonian Folkways label.  Sarah Lee Guthrie is joined by Irion and their two daughters, as well as numerous friends and family members including Arlo Guthrie, Pete Seeger and Tao Rodriguez-Seeger. The album includes three songs featuring lyrics by Woody Guthrie never before put to music and eight songs written by Sarah Lee and family. The Parents' Choice Foundation awarded Go Waggaloo a Gold Medallion.  The Parents' Choice Awards program honors the best material for children in the categories of: books, toys, music and storytelling, magazines, software, videogames, television and websites.
  In 2011, Sarah Lee and Johnny signed with Berkeley independent record label, Ninth Street Opus and released Bright Examples. The collaborative project features producers Andy Cabic (lead singer-songwriter in the band Vetiver (band)) and Thom Monahan (Devendra Banhart, Vetiver (band)).
  In 2012 – the centennial year of Woody Guthrie's birth – an album of newly composed songs using Woody Guthrie's lyrics was released: New Multitudes. At a centennial celebration tribute concert held on March 10, 2012, at the Brady Theater in Tulsa, Oklahoma, Sarah Lee and Johnny performed along with John Mellencamp, Arlo Guthrie, the Del McCoury Band and the Flaming Lips.
  Jeff Tweedy produced Sarah Lee Guthrie and Johnny Irion's album, Wassaic Way, released in 2013.  It was recorded in Chicago – Tweedy's hometown – and garnered him a Grammy nomination as producer.
  Guthrie and Irion amicably broke up in 2014, which Guthrie did not publicly acknowledge until 2023. In 2018, each embarked on solo projects, with Guthrie serving as opening act for her father's "Alice's Restaurant: Back by Popular Demand" tour and Irion releasing a rock album Driving Friend.