Ozzfest Meets Knotfest, the marriage of two of the biggest names ever in music festivals have released a recap video of this last month’s event. You can watch it below:

Slipknot played all of their Iowa album (Roadrunner):

According to the San Bernardino County Sheriff’s Department, about 37,000 people attended the event on September 24 (Ozzfest), and around 25,600 people attended the event on September 25 (Knotfest), with 3,470 campers on the festival grounds.

Ozzfest lineup for Saturday was headlined by Black Sabbath, while Slipknot closed out Sunday’s Knotfest date. Other bands which played the combined festival were Disturbed, Opeth, Slayer, Trivium, Black Label Society, Anthrax, Suicide Silence and more.