Dum Spiro Spero (stylized as DUM SPIRO SPERO, lit. '"While I breathe, I hope"') is the eighth studio album by Japanese heavy metal band Dir En Grey, released on August 2, 2011 in the U.S., and in Japan on August 3.

The album's three singles, "Hageshisa to, Kono Mune no Naka de Karamitsuita Shakunetsu no Yami", "Lotus" and "Different Sense", have all been remastered from their original releases. "Rasetsukoku" is a re-recording of the original song found on their 2000 album Macabre.

The album was mixed by Tue Madsen and the mastering process wad one by Alan Douches. Die stated in an interview with Visual Music Japan that working with these 2 was the most challenging part of the making process:

The most challenging part of the album-making process was probably the mixing, done by Tue Madsen, and the mastering process, done by Alan Douches. For the mastering, we wanted our sound to be as perfect as possible, exactly how we envisioned it. However, since we worked with a Western engineer, it was difficult to discuss and communicate our ideas solely through the internet. This is something that is better done in person. It was complicated to exchange ideas, piece everything together, and ensure that we achieved the sound we wanted. The mastering process was definitely the most challenging step in the recording.^[4]

It was released in both a single-CD edition, a deluxe edition digipak with two bonus tracks ("Rasetsukoku" and "Amon (Symphonic Ver.)"), and a limited edition featuring the deluxe digipak, a DVD and two LPs. This featured alternative versions of songs from the regular version of the album, remixes, interviews, studio footage, and more.^[5]

Music videos were released for all three singles; "Hageshisa to, Kono Mune no Naka de Karamitsuita Shakunetsu no Yami", "Lotus" and "Different Sense".^[6][7][8][9]

The album art was designed by the band's long-time artist Koji Yoda. This cover-art probably represents Tara, the "Mother of Liberation" in Tibetan Buddhism. The bamboo scenery is very meaningful to the band. According to guitarist Die, "the bamboo conveys the idea of sacredness and serenity [...]. Ultimately, it means to keep faith and hope alive even though you are living the worst: While I breathe, I hope."^[10]

More information Aggregate scores, Source ...

Professional ratings

Aggregate scores
Source	Rating
Metacritic	74/100[11]
Review scores
Source	Rating
Allmusic	[12]
PopMatters	[13]
Revolver	[14]
Rock Sound	[15]

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Dum Spiro Spero was met with positive reviews from music critics. At Metacritic (a review aggregator site which assigns a normalized rating out of 100 from music critics), based on 8 critics, the album has received a score of 74/100, which indicates "Generally favorable reviews".

In his review for AllMusic, Thom Jurek wrote that "Dir en Grey are a band in their own genre at this point, and Dum Spiro Spero is the farthest-reaching testament to establish that as fact more than opinion." He also acknowledged the wide variety of influences on the album, ranging from death metal and power metal to pop music, praising comparing vocalist Kyo's range to Mike Patton. Rock Sound described it as a "satisfyingly challenging, perpetually writhing musical beast".

PopMatters' Dane Prokofiev noted in a positive review that "their music is eclectic and hard to classify into any one subgenre—except that they have the added fangirl-ish oomph of flashy appearances, thanks to their visual-kei roots". Like Jurek, he praised Kyo as a gifted singer, particularly for his range. He also singled out bassist Toshiya as deserving of praise for his performance on Dum Spiro Spero, "as his throbbing bass lines complement the technical guitar riffs well by adding a groovy kind of bad-ass attitude to the overall feel of the music. Without him, the guitar melodies of Kaoru and Die would most certainly sound naked and hollow."