Complex sentence: Later that month, the band later confirmed the official release date of the album will be on the 12th of February, 2014, and also a new single would also be released on the 6th of December 2013 titled "As a Butterfly".
Split into simpler sentences: Later that month, the band later confirmed the official release date of the album will be on the 12th of February, 2014. The band released a new single on the 6th of December 2013 titled "As a Butterfly".