Conversation so far:
What is Antennas to hell by Slipknot
Antennas to Hell is the first greatest hits compilation album by American heavy metal band Slipknot
How popular was the antennas to hell album by Slipknot?
Slipknot's Antenas to Hell album debuted at number 18 on the U.S. Billboard 200 with sales of more than 16,000 copies in its first week
When wasthe album Antennas to Hell by the band slipknot released?
Slipknot's Antennas to Hell album was released on July 23, 2012.
What was the band slipknots Knotfest?
slipknot's annual music festival
When did Slipknot's annual music festival Knotfest take place?
Slipknot's annual music festival Knotfest takes place on August 17, 2012.
Where was the location for the festival knotfest by the band Slipknot?
Slipknot's knotfest festival is located at Mid-America Motorplex near Pacific Junction, Iowa and in Somerset, Wisconsin.
Did any other musicians play at Slipknot's festival knotfest?
Deftones, Lamb of God, and Serj Tankian all played at Slipknot's knotfest festival.
How successful was the festival Knotfest by the band slipknot?

Question: Did they go on to have more in the following years?
Self-contained rewrite: Did they go on to have more knotfest festivals besides the one held in on August 17, 2012  in the following years?