距平克·弗洛伊德乐队首次揭开《月之暗面》（简称《暗面》）专辑的面纱已有33年了。这33年中，这张专辑只有一次滑出过“公告牌200”排行榜，那是在1988年。截止这周止，《暗面》专辑已经非持续性地在此排行榜上保持了1，500周的上榜历史了。

要知道这个里程碑有多夸张吗？这么想：在此榜上上榜时间第二长的专辑是著名雷吉乐宗师鲍伯·马利的精选专辑《传奇》，这张精选在榜上也只是持续了接近《暗面》一半的时间。甚至直到现在，《暗面》仍然保持着每周几乎8，000张以上的销量，而自首次发行以来的总销量则逾4千万，这确实是非常骄人的成绩。

乐队的奠基人罗杰·沃特尔（Roger Water）采访中提到，《暗面》是平克·弗洛伊德的第六张专辑，是在乐队灵魂人物/吉他手席德·巴瑞特（Syd Barrett）离队后完成的。“当唱片完成后，我带着一卷磁带回了家，”罗杰告诉“公告牌”记者，“我记得我给我老婆放了一遍，她听完后泪水夺框而出。然后我就想，‘这歌已经打动了她的心弦’。看到她的反应我非常地高兴。”

罗杰宣布他将在其即将开始的巡演中表演《暗面》——只是不再和他那些已经关系疏远了的前乐队成员一起。“我自己有支很伟大的乐队，”罗杰坚持道，“我希望我们可以纯正地演出那些歌曲。”

Get ready to feel old: It's been over 33 years since Pink Floyd unleashed Dark Side of the Moon upon the world. During that time, the album has slipped off the Billboard 200 album chart only once, in 1988 (a terrible year for music all around, apparently -- George Michael's Faith and Kylie Minogue's Kylie topped the charts that year). And as of this week, Dark Side has notched 1,500 non-consecutive weeks on the album charts.

How ridiculous of a milestone is this? Put it this way: The second-longest chart run belongs to Bob Marley's Legend, a greatest-hits collection that has spent barely half as much time on the charts. The fact that both albums are famously popular with stoners and other recreational drug users has no doubt helped their cause: "Dude, I can't find my copy of Dark Side!" "Bummer, dude...hey, I'm going to Tower, want me to grab you another one?"

Still, stoner factor aside, the continued popularity of Dark Side, which continues to move 8,000-plus copies on an almost weekly basis, and has sold upwards of 40 million copies since its release, is a pretty remarkable achievement.

Floyd founding member Roger Waters recalls having an inkling early on that Dark Side, the band's sixth album following the departure of Floyd's resident madman and longtime muse Syd Barrett, might be something special. "When the record was finished, I took a reel-to-reel copy home with me," Waters told Billboard. "And I remember playing it for my wife then, and her bursting into tears when it was finished. And I thought, 'This has obviously struck a chord.' I was kinda pleased by that."

Waters has announced plans to perform Dark Side of the Moon on his upcoming tour -- without the other members of Pink Floyd, with whom he remains estranged. "I've got a great band together," Waters insists, "and I have every hope that we will do the work justice."