Barbra Streisand and Barry Gibb are reuniting for a duets CD that's being billed as a follow-up to their landmark 1980 album, Guilty. According to Billboard, Guilty Pleasures  in stores on Sept. 20  is expected to include the Streisand-Gibb duets "Come Tomorrow" and "Above the Law." The album will also feature Streisand singing a number of new songs written for her by Gibb and heavily edited by Babs.