Willie Nelson, Neil Young, John Mellencamp and Dave Matthews will perform during Farm Aid 2013 set for Sept. 21 at the Saratoga Performing Arts Center in Saratoga Springs, N.Y. Other acts appearing at the all-star concert will be announced in the near future. Since its inception, Farm Aid has raised more than $43 million to assist family farmers while calling attention to food grown on local farms. Tickets, priced at $45-$150, go on sale to the public on June 28 via Ticketmaster. … In related news, Nelson and Young will perform on CMT Crossroads: Willie Nelson and Friends at Third Man Records premiering Sunday (June 23) at 9 p.m. ET/PT on CMT. The concert special also features Sheryl Crow, Jamey Johnson, Norah Jones, Ashley Monroe and Leon Russell.