Singer's latest song addresses income inequality, Black Lives Matter
Heart, Michael Bolton, John Mellencamp, Cyndi Lauper, Josh Groban, Imagine Dragons' Dan Reynolds contribute to anti-campaign ballad on 'Last Week Tonight'
September 17th concert will also feature Farm Aid board members Willie Nelson, Neil Young, John Mellencamp and Dave Matthews
Rock and country icons collide for "Pink Houses"
Keith Urban with John Mellencamp, Carrie Underwood, Chris Stapleton with Justin Timberlake and more explosive performances
Iconic rocker and country phenom will likely team for "John Cougar, John Deere, John 3:16"
Willie Nelson, Neil Young, Kacey Musgraves, Imagine Dragons and more acts who lit up Chicago for the event's 30th anniversary
Farm Aid co-founders gear up for this weekend's big event by swapping lines on the country legend's classic hit
Track is part of a digital compilation of acoustic remakes and originals, also featuring Michelle Branch, John Hiatt and Train
Dave Matthews, John Mellencamp, Imagine Dragons, Jack Johnson, Kacey Musgraves and Promise of the Real all set to perform
Heartland rocker's raucous Ryman Auditorium concert reveals his influence on today's country music
Carlos Santana, Nile Rodgers and Rush's Geddy Lee also sit for chats on the public television show
New music video was filmed in one continuous shot with a single camera
From Neil Young's tirade to Willie Nelson's family affair, the most unexpected moments from the annual fundraiser