Though he's busy working on his new, full-cast play, Griller, author/monologist Eric Bogosian is taking time out for other projects before its premiere next month in Chicago.

Bogosian will be performing his 1994 piece, Pounding Nails In The Floor With My Forehead for four performances at NYC's Knitting Factory (74 Leonard St), Dec 16-17.

This revival of Forehead was originally scheduled for October but was postponed for schedule conflicts. Shortly after his Knitting Factory performances, Bogosian will be opening Griller at the Goodman Theatre in Chicago, which begins previews Jan. 9 and opens Jan. 19. Griller is based on a four-generation family barbecue revealing the dark side of this American tradition.

Bogosian is no stranger to the full length play format with two plays already under his belt, subUrbia and Talk Radio (both made into feature films) but probably best known for his character-filled monologue evenings, such as Sex, Drugs, Rock & Roll, Drinking in America, Fun House and Wake Up And Smell The Coffee.

For tickets ($15) and information on Pounding Nails call (212) 219 3006. --By Sean McGrath and David Lefkowitz