You +3 for $99. That's a possibility for this year's Ozzfest Meets Knotfest. For just $99, you and three friends can attend either Ozzfest (Saturday, November 4th) or Knotfest (Sunday, November 5th) at Glen Helen Amphitheater and Festival Groundsin San Bernardino, CA. A limited number of the single day $99 four-pack GA ticket bundles will be available from Tuesday, August 15th at 10 AM (PT) through Saturday, August 19th at 12:59 PM (PT).

The two-day festival's power packed line-up is led by performances from Ozzy Osbourne and Prophets Of Rage on Saturday at Ozzfest plus Rob Zombie and Marilyn Manson at Knotfest on Sunday. The multi-stage, three-day camping event will include sets from more than 40 acts. The weekend-long Ozzfest Meets Knotfest will kick off with an exclusive free Friday, November 3rd camping kick-off concert that will give campers early access to the campsite, allowing them time to prepare for a night of performances from Monster Magnet, Brant Bjork, Sasquatch, and Lo-Pan. VIP camping lines open at 4 PM, general camping load in begins at 5 PM. Doors to the Friday night camping kick-off party open at 7 PM with live music set to kick off at 8 PM.

Tickets deals will be available at Ozzfest.com and Knotfest.com.

Ozzy Osbourne: “Last year's show with Black Sabbath was just incredible and I'm thrilled to be coming back this year with Zakk, Tommy, Blasko and Adam to headline the 21st anniversary of Ozzfest."

Slipknot’s Clown: "It's that incredible time again where Ozzfest and Knotfest meet up to bring all music fans together for two days of rock and roll. Let's not forget the beautiful culture we are involved in and the history that is being written. Join the true passion of our concepts. I'll see you there. Stay (sic)."

Sharon Osbourne: "Ozzfest Meets Knotfest is coming back for another round. Last year we had over 75,000 people attend and we have another great lineup this year with Ozzy's first solo show in L.A. in more than six years. This is not just another show... it's Ozzfest Meets Knotfest! And this year's event means the world to me as we'll be amongst friends like Prophets Of Rage, Rob Zombie, Deftones, Marilyn Manson and Stone Sour... it's going to be another amazing weekend."

Corey Taylor (Slipknot/Stone Sour): "Knotfest was never supposed to be exclusively about Slipknot. It was always about the things that fueled the spirit of Slipknot: music, art, passion, insanity, and the tribes that give it power. So it would make sense for Knotfest to carry on these ideas, even without Slipknot. Because these things are the gasoline of creativity, and there's plenty to go around, with plenty of great bands, acts and things to see. Teaming up again with Ozzfest means another weekend of the biggest, baddest, loudest and best. I hope you all will join us; it's going to be (sic)."

Ozzfest - Saturday, November 4th

Main Stage - Ozzy Osbourne, Prophets Of Rage, Deftones, Children Of Bodom, Orange Goblin

Second Stage - Kreator, Baroness, High On Fire, Iron Reagan, 1349, Havok, Kyng, Tombs, Night Demon, Thrown Into Exile

Nuclear Blast Extreme Stage - Possessed, Suffocation, Fallujah, Rings Of Saturn

Knotfest - Sunday, November 5th

Main Stage - Rob Zombie, Marilyn Manson, Stone Sour, Eighteen Visions, Prayers

Second Stage - Testament, Life Of Agony, Black Dahlia Murder, Upon A Burning Body, Goatwhore, Death Angel, Code Orange, ONI, Stitched Up Heart, DED

Nuclear Blast Extreme Stage - Repulsion, Exhumed, Warbringer, Ghoul