Courtney Barnett, 36
Songwriter
Jazmine Sullivan, 36
Jessica Sutta, 41
John Newman, 33
Robert J. Sherman, 55
Rodney Jerkins, 46
Neko Case, 53
Matt Berninger, 53
Emily Strayer, 51
Beth Ditto, 43
Deana Carter, 58
Peabo Bryson, 72
Michael Kiwanuka, 36
John Shanks, 59
Nanci Griffith, 68
Gareth Gates, 39
Mark Speer, 44
Birdy, 27
Christian Hebel, 48
Mary Chapin Carpenter, 66
John Hiatt, 71
Kris Allen, 38
Arthur Gunn, 26
Corey Hart, 61
Tal Bachman, 55
Chelsea Wolfe, 40
Jacquees, 29
Michelle Shocked, 62
George Fisher, 53
Mike Watt, 66
Dean Lewis, 36
Vicki Peterson, 66
Kim Thayil, 63
Paula Cole, 55
Eric Stefani, 56
Robert Lopez, 49