We've had Metallica on the brain a lot lately, what with their upcoming collaboration/album with Lou Reed, LuLu (which just had album art released today), and the upcoming Metallica-themed Obey Your Master Show at Exhibit A gallery in L.A. Also, 2011 marks their 30th anniversary as a band, which is very impressive. (Never underestimate the power of talk therapy, bands.) It only, therefore, felt appropriate to make their "Enter Sandman" our music video of the day for Oldie But Goodie Friday. The video, directed by Wayne Isham, was only the second video the band ever made and the first off their hugely popular self-titled 1991 album. The quality of this video sucks, so we also recommend this crisper version with Spanish subtitles. Salida la luz, entra la noche.