EXPOSE “What You Don’t Know.” Arista * 1/2 : POP STARS ***** Great Balls of Fire **** Knockin’ On Heaven’s Door *** Good Vibrations ** Maybe Baby * Ain’t That a Shame

Want to empty a dance floor fast? Play some of the lame, low-energy dance tracks from this album. The vocal trio’s hit debut album, “Exposure,” included ‘Come Go With Me,” one of the best dance tracks of the last few years, and it established Lewis A. Martinee as a premier dance-music producer. But on the new album there’s nothing even remotely close to that gem. It’s hard to tell which is worse, Martinee’s production or his arrangements.

Expose has veered strongly in a pop direction. Pop ballads get a heavier emphasis this time--possibly because the ballad “Season’s Change” from the last album was a smash hit. Actually, Expose’s singers--Ann Curless, Gioia and Jeanette Jurado--are very capable, and their vocal quality continually shines through, even on some of the awful tunes. The album does feature one top-notch song--a ballad, “Your Baby Never Looked Good in Blue,” which has mournful, country-style lyrics.