[6][7][8][9] Outside of official tours, the band played several festivals throughout 2011 including UFEST in Mesa, Arizona,[10] Rockfest, and Summerfest in Milwaukee, Wisconsin.

[14][15] On March 22, the band appeared live on the late night talk show Lopez Tonight as a musical guest where they performed the single "Hear Me Now" to promote the album.

[16] The band reportedly almost drank the entire bar behind the Turner Broadcasting System set, with George Lopez saying to J-Dog, "Drink all of it.

"Coming Back Down" previously surfaced due to a leak on February 18 and was later confirmed to be on the album and was produced by Kevin Rudolf.

Brian Voerding noted that the song showed the band's strength in both singing and rapping while comparing the sound to Linkin Park.

"[24][25] Third is "Comin' in Hot", a party song and the album's fourth single that uses humor to describe what happens in night clubs.

[13] The song's lyrics tell the story of a person who is depressed and hopeless, taking a very somber tone to the track.

"Coming Back Down", the third single released from the album, is a rock ballad song with acoustic guitars on the track.

"[29] "Tendencies", which is the closing track for the standard edition of the album, is a high tempo alternative metal song about murder.

[30] Rick Florino of Artistdirect gave American Tragedy 5 out of 5, particularly praising the band's choice to avoid duplicating their debut album, Swan Songs, and instead choosing to create a, "darker, deeper, and far deadlier ride this time around."

Florino concluded that, "Hollywood Undead's genius lies—in that dangerous space between unforgettable and unsettling," pointing this out in the track, "Bullet", for it being the, "sunniest and catchiest tune on American Tragedy," while still telling, "a potent and poignant tale of longing for suicide."

The other track Florino pointed out for being unforgettable is, "Pour Me", calling it, "an evil power ballad that everyone who hears it will feel.

He praised several tracks including "Been to Hell", "Apologize", "Comin' in Hot", "Bullet", "Levitate", and "Tendencies" as numerous outstanding points in the album.

Borjon did criticize the slower songs, "Coming Back Down" and "Pour Me" but dismissed that that were, "easily forgotten among the album's many undeniably addictive future hits.

"[34] Richard Solomon of The Minaret proclaimed that, "If you're a Hollywood Undead fan, you'll love American Tragedy.

Wood's biggest complaint of the album was that the band has, "filtered out any sense of humor from its music, which makes American Tragedy virtually impossible to listen to for longer than a few songs at a time.

"[33] Alistair Lawrence of BBC Music said that the album is, "The result is that they've ditched some of the early, growling quirkiness that at least gave them an initial, oddball appeal."

Lawrence finishes his review noting, "Hollywood Undead are content to deliver clichés – more out of a lack of imagination than cynical opportunism, but it still smacks of both.

When the official sales week ended, the album exceeded expectations and sold about 67,000 copies, but was outsold by Radiohead's The King of Limbs and so debuted at number four on the Billboard 200.

Weekly sales topped albums such as Wiz Khalifa's Rolling Papers and Chris Brown's F.A.M.E., and was right behind Adele's 21, Britney Spears's Femme Fatale, and Radiohead's The King of Limbs.

jokingly remarked, "I gotta be honest with everyone: I was really looking forward to the opportunity to be on top of Britney this week, but being right behind her and Adele is a memory we'll relish forever.