Sarah McLachlan was announced yesterday as the headlining act for the re-launched Lilith Fair in 2010. McLachlan co-founded the touring festival back in 1997. Joining McLachlan on the tour, the first Lilith Fair in eleven years, are Erykha Badu, Ke$ha, Sheryl Crow, Colbie Caillat, Mary J. Blige, and many more. Dates have yet to be announced.