[5] On February 9, 2011, Shavo Odadjian posted on his Twitter profile: "Just finished up our first rehearsal in 5 years.

"[6] On April 7, 2011, System of a Down commented on their official website: "We want to know which songs you most want to hear on the road this summer.

As a reward for telling us your top 6 setlist requests, one winner from each tour city will win a pair of tickets to his/her local show.

"[7][8] On April 19, 2011, posted this: "For each date of the upcoming SOAD North American and EU Headline Tour, we are auctioning a pair of tickets, plus a personal lunch with John Dolmayan.

We don't generally work during Christmas and New Year's — that's a time for our family and stuff — so we'll be home for the next three or four months.

Instead of resting on our laurels, we wanna throw them away and create something new and specific for this generation that they can say that's their System of a Down.

[18] On April 23, 2012, System of a Down announced a slate of North American tour dates with special guest, Deftones.

[20] On November 10, 2014, System of a Down announced that they will be headlining Night One of KROQ's Almost Acoustic Christmas on December 13, 2014 at the Los Angeles Forum.