* * * * <i> Great Balls of Fire</i> * * * <i> Good Vibrations</i> * * <i> Maybe Baby</i> * <i> Running on Empty : </i> : BEYOND BIMBOLAND

* * 1/2 “WHO’S THAT GIRL” sound track. Various artists. Sire. What becomes a legend most? A mega-hit album, which this sound-track LP is destined to become. Yes, but is it any good ? Compared to, say, the “Beverly Hills Cop II” music, it’s most decidedly not bad , and Madonna, having boldly pushed past the boundaries of bimboland, is confident and wise enough to share the vinyl with artists who shift the stylistic focus from track to track.

Her own four cuts include the sweetly innocent title song, whose lyrics are spiced by a bit of Spanish flavoring. While her ballad “The Look of Love” is bland, “Causing a Commotion” and “Can’t Stop” rock nicely in the tradition of past Madonna dance-floor hits.

Elsewhere, Duncan Faure’s Lennonesque phrasing on “24 Hours” has a cheery, “Sgt. Pepper”-ish buoyancy, and Michael Davidson’s “Turn It Up” recalls the synthesized Euro-disco of the late ‘70s.

Club Nouveau briefly gropes for a groove on “Step by Step,” and finds it in a manner reminiscent of its own recent pop/funk hits. Jazzed up with sax and piano solos, “Step by Step” is the second-funkiest item here. Top honors go to “El Coco Loco (So So Bad)” by Coati Mundi, a member of Kid Creole & the Coconuts, who assumes the role of a hot--make that hapless--lover on this south-of-the-border rumba. Rounding things out with a shot of pop punch is Scritti Politti’s “Best Thing Ever,” a song so slyly sexy that Madonna should have recorded it herself.

Light and effervescent with no lingering aftertaste, this album is fine pop fare for summer.