They're the strangest of bedfellows, but kitsch-rocker Rob Zombie and '80s R&B idol Lionel Richie recently recorded a duet of the Commodores' ''Brick House,'' the 1977 paean to pneumatic hotties. ''I love all of the music from [the '70s], whether it was Black Sabbath or Captain & Tennille,'' says Zombie. (Are you sure you want that in print, buddy?) The snazzy update -- which will appear in his bloody directorial debut, ''House of 1000 Corpses,'' hitting theaters in April -- doesn't forsake any of the modern-day wedding-reception staple's playful elements, but there is one addition: Rap diva Trina recorded a ribald interlude at Richie's suggestion. ''We knew we needed someone who was mean and nasty and dirty,'' says Zombie. ''And that's where Trina came in.'' A la 'Moulin Rouge''s sleazy rehash of ''Lady Marmalade,'' Zombie plans to bring his ''House'' to radio. ''There's a freak-show element to it,'' he explains. ''It is so ridiculous, and Lionel knows it too. It's so wrong that it ends up being so right.''