in
Montreal, Canada, during the
Honda Civic Tour, in August 2011 The band posted a teaser trailer for the album on September 17, 2010, via their official
YouTube account, titled "Art Is the Weapon". On September 19, 2010, the band announced "
The World Contamination Tour", taking place in parts of the UK, France, the Netherlands and Germany. This was followed by US radio dates in December before moving onto Japan, a full Europe tour, a US tour, European festivals and the
Honda Civic Tour with
Blink-182 in 2011. The album's first single "Na Na Na (Na Na Na Na Na Na Na Na Na)" premiered on air September 22, 2010 via
WRFF in Philadelphia,
BBC Radio 1, and
KROQ-FM in Los Angeles. The track is featured in the film
Movie 43, and is also featured in the video game
The Sims 3: Late Night, sung in the fictional language of
Simlish. "
The Only Hope for Me Is You" was released as a promotional single on October 11, and was also given as a free download to anyone who pre-ordered the album on the
iTunes Store. "
Sing" was covered on the
Fox show
Glee. "
Planetary (Go!)" was featured in the video game
Gran Turismo 5 and was also used in an advertisement for
Super Bowl XLV. "The Kids From Yesterday" was premiered live on October 23, 2010. The songs "Na Na Na" and "Destroya" were also featured on the
MTV show
Teen Wolf. "Save Yourself, I'll Hold Them Back" was released as a free download on the band's official website on 5 November 2010. The album premiered on November 16, 2010, on the band's official website, hosted by Dr. Death Defying. For the deluxe edition of
Danger Days, My Chemical Romance included the
Mad Gear and Missile Kid extended play, labelled by the band as being part of the "
Danger Days universe". The EP contains three tracks: "F.T.W.W.W.", "Mastas Of Ravenkroft" and "Black Dragon Fighting Society". The EP was released onto streaming services in 2022. ==Critical reception==