CONFIRMED: Return of Halloween on the Rocks? Mac Miller & Vince Staples Drop Hints Josh CowdenSeptember 6, 2016 - AEG Live Rocky Mountains has announced the full lineup for Halloween on the Rocks for October 31, 2016 with Mac Miller, Vince Staples, Big K.R.I.T., Pouya, N... ConcertsDenver MusicMusic3 min read