Willie Nelson, Neil Young, John Mellencamp, and Dave Matthews will welcome an all-star lineup to Farm Aid’s 30th anniversary concert on Sept. 19 in Chicago. Among the other big names: Imagine Dragons, Jack Johnson, Old Crow Medicine Show, and Mavis Staples. (Billboard) On Sunday, police in Renville County, Minnesota, arrested Puddle of Mudd singer Wes Scantlin after he forced them to give chase at speeds…