Background: Hollywood Undead is an American rap rock band from Los Angeles, California, formed in 2005. They released their debut album, Swan Songs, on September 2, 2008, and their live CD/DVD Desperate Measures, on November 10, 2009. Their second studio album, American Tragedy, was released April 5, 2011. All of the band members use pseudonyms and wear their own unique mask, most of which are based on the common hockey goaltender design.
Context: In early 2010, the band announced that singer, Deuce, had left the band due to creative differences. Ragan and Busek later cited arguments over writing credits, and Deuce not wanting to tour, as reasons for the departure. Decker and Terrell also stated that Deuce wanting to bring his own personal assistant for touring caused a rift between members. The band asked long-time friend, and lead singer of Lorene Drive, Daniel Murillo, to fill in for Deuce's role. Murillo had just advanced past the auditions for season 9 of American Idol, but decided to drop out to join the band.  The band soon began writing material for their second studio album; American Tragedy, in mid-2010, with hopes to release it by the end of the year. The band has also confirmed that producer Don Gilmore, would return to produce the album. Recording concluded around mid-November and the band began mixing the album the day after Thanksgiving.  The band co-headlined the Nightmare After Christmas Tour with Avenged Sevenfold and Stone Sour to support the album. The first single, "Hear Me Now", released in December 2010. The single reached a peak of number nine on the Heatseekers Songs chart on Billboard, twenty-four on the Billboard's Rock Songs chart, and number twenty on the Alternative Songs chart. On January 21, they released a new song, "Comin' in Hot" available for a free download, and announced that the official release date for the album would be March 8, 2011. but as of February 22, 2011, it was announced that the album has been pushed back to April 5, 2011. On February 6, 2011, the band released another song titled "Been to Hell", for a free download.  American Tragedy turned out to be more successful than their first album Swan Songs, selling 66,915 in its debut week and peaking at No. 4 on the Billboard 200. It has also peaked at No. 2 on many other charts, while also reaching No. 1 on the Billboard's Top Hard Rock Albums chart. The album was also very successful in other countries, making No. 5 in Canada and No. 43 in the United Kingdom. To continue promoting the album, the band headlined the Revolt Tour, along with 10 Years, Drive A, and New Medicine. The tour took place between April 6 and May 27, 2011. After the tour, the band played several shows in Europe, Canada, and Australia. They will then headline the Endless Summer Tour with All That Remains and Hyro da Hero, which took place between July 18 and August 7, 2011.  The band announced in August 2011 that they would be releasing the remix album titled American Tragedy Redux, that would contain both professional and fan remixes from winners of a remix contest. of songs. It was released on November 21, 2011. In the same month, the band set out on the "World War III" tour, with Asking Alexandria, We Came As Romans, Borgore, and D.R.U.G.S. Following the tour, the band also joined Avenged Sevenfold again on the "Buried Alive" tour, with Black Veil Brides and Asking Alexandria, with dates running from November 11 to December 14.
Question: When was Departure of Deuce?

Answer:
In early 2010, the band announced that singer, Deuce, had left the band due to creative differences.