Several of the McGarrigle sisters' friends and collaborators, including Emmylou Harris, Linda Ronstadt, Chaim Tannenbaum, Joel Zifkin and Philippe Tatartcheff, also appear on the album.
Billy Joel | Joel Chandler Harris | Joel-Peter Witkin | Joel Schumacher | Joel Osteen | Joel Hodgson | Joel Whitburn | Joel Plaskett | Haley Joel Osment | Joel McHale | Joel McCrea | Joel Lamangan | Joel Grey | Joel | Mitch Joel | Joel Zifkin | Joel Spolsky | Joel Silver | Joel Salatin | Joel Hayward | Karl Amson Joel | Joel Wapnick | Joel Veitch | Joël Robuchon | Joel Porter | Joel Klein | Joel Futterman | Joel David Moore | Joel Daly | Joel Banal |
Among the participating artists honoring her at these concerts were Martha Wainwright, Rufus Wainwright, Anna McGarrigle, Emmylou Harris, Norah Jones, Antony Hegarty, Jimmy Fallon, Krystle Warren, Justin Vivian Bond, Teddy Thompson, Jenni Muldaur writer Michael Ondaatje and longtime friends and McGarrigle sidemen Chaim Tannenbaum and Joel Zifkin.
Performers on the album include Kate's son and daughter Rufus and Martha, Anna's husband Dane Lanken and their children Lily and Sylvan, and Kate and Anna's sister Jane, as well as Emmylou Harris, Chaim Tannenbaum, Pierre Marchand, Joel Zifkin, Brad Albetta, Teddy Thompson and Beth Orton.