NINE INCH NAILS frontman Trent Reznor and TOOL/A PERFECT CIRCLE singer Maynard James Keenan recently hit Southern Tracks Recording Studios in Atlanta, Georgia (see photographic evidence here) to continue work on Reznor's pet project TAPEWORM, which also features NIN's Charlie Clouser and Danny Lohner.In the works for several years, TAPEWORM is essentially a collaborative studio project centered at Reznor's New Orleans studio, where Keenan recorded the vocal track for the song "Vacant" in 1999. The music for "Vacant" was written by Lohner and rearranged by Clouser, with lyrics and melody by Keenan and chorus and backing vocals by Reznor. "Vacant" had been performed live regularly during A PERFECT CIRCLE's debut tour, a move that had annoyed Reznor, who made his feelings clear at the time in a post on NIN's official web site. "I have to admit I find it mildly irritating for ['Vacant'] to debut in this fashion before feeling it has been properly realized," Reznor wrote. No further information is currently available about TAPEWORM's recording or touring activities, but a debut album is still expected to surface through Nothing Records at some point in the not-too-distant future.