On the same mid-September weekend when Festival Palomino used to be held at the horse track, Canterbury Park will welcome the Twin Cities debut of '90s all-star rap/rock band Prophets of Rage and the first local outdoor gig by prog-metal heroes Mastodon.

Dubbed the 93X: Twenty festival, the Sept. 16 event in Shakopee will mark the 20th anniversary of the Twin Cities' resident hard-rock station (93.7 FM). The lineup also features Ohio quartet Starset – enjoying a buzz right now with the atmospheric hit "Monster" -- plus Mastodon's fellow Atlanta band Fozzy, Michigan newcomers Greta Van Fleet and local mainstays Throwing the Fight. Tickets are on sale now via Ticketmaster for $35.50 for general-admission (which will increase to $45 and then $55 as the fest nears), or VIP passes are $121.

The Saturday show was made possible thanks to a change in Canterbury's live racing calendar. Horses will now stop running for the season on the night before the concert, Friday, Sept. 15, making room for the main stage to be set up on the grass inside the track, the way Festival Palomino used to be laid out there. (Palomino moved to Hall's Island in Minneapolis last year and is on hiatus this year).

For those unaware, Prophets of Rage is the new band featuring Rage Against the Machine's three instrumentalists plus two legendary rappers, Chuck D of Public Enemy and B-Real of Cypress Hill. They made their live debut last year, blending songs by the members' prior bands, including: "Testify," "Killing in the Name" and "Bulls of Parade" (Rage tunes); "Fight the Power" and their namesake anthem "Prophets of Rage" (from P.E.'s canon), and "How I Could Just Kill a Man" (Cypress Hill). They are about to release their first album, "The Party's Over." Here's the second single from the record, posted below.