Suzanne Vega, Janis Ian, Cat Power, Astrud Gilberto, Alannah Myles, Mariah Carey, PJ Harvey, Tracy Chapman, Joss Stone, Alanis Morissette, Melissa Etheridge, Florence + The Machine

Dean Martin & Tony Bennett, George Benson & Carlos Santana, Jeff Beck & Imelda May, Mavis Staples & Jonny Lang, Allman Brothers & Eric Clapton, Bruce Springsteen & Melissa Etheridge, Billy Joel & John Fogerty, Stevie Wonder & Chaka Khan, Dolly Parton & Elton John, John Denver & Glen Campbell, Jerry Garcia & David Grisman, Jorge Ben & Lucio Dalla

Lenny Kravitz, Buckwheat Zydeco & Ry Cooder, Van Morrison, Tom Jones & Jeff Beck, Bon Jovi & Kid Rock, Sarah McLachlan & Melissa Etheridge, Ann Hampton Callaway & Liza Minnelli, Stevie Nicks & Dave Grohl, Carly Simon & James Taylor, Grace Jones & Iggy Pop, Rihanna & Maroon 5, Britney Spears & Will.I.Am, Eric Clapton & Billy Preston, Justin Timberlake & Jay Z

Norah Jones, Joni Mitchell, k.d. lang, Melissa Etheridge, Dianne Reeves, Sharleen Spiteri, Adele, Nancy Wilson & Ann Wilson, Madonna, Alanis Morissette, Rebecca Lovell & Megan Lovell, Samantha Fish

Tina Turner, Sheryl Crow, Melissa Etheridge, George Michael, Lloyd Cole, Zucchero & Randy Crawford, Kim Wilde, Heather Nova , Tanita Tikaram, Beverley Craven, Gloria Estefan, Tasmin Archer

Miley Cyrus, Melissa Etheridge, Gov't Mule, Keith Urban, The Killers, Daughtry, Dave Stewart, Pia Ashley, KT Tunstall, Larkin Poe, Kurt Vile, John Mayer