Last Day of Summer

Carrie Underwood

Lady A

Bryan Adams

Paul McCartney, Jon Bon Jovi, Sheryl Crow, Fergie, Colbie Caillat, Natasha Bedingfield, Leona Lewis, Sean Paul, Johnny Rzeznik, Krewella, Angelique Kidjo, Kelsea Ballerini, Nicole Scherzinger, Christina Grimmie, Victoria Justice & Q'orianka Kilcher

Alanis Morissette & Willie Nelson

Dolly Parton

Jewel

Whitney Houston

Colbie Caillat & Sheryl Crow

LeAnn Rimes & Brian McFadden

Shania Twain

Luke Evans

Tim Montana

Tim McGraw

Shania Twain

Mariah Carey & Boyz II Men