When Kelis hit the scene in 1999, dropping her debut album, Kaleidoscope, after appearing with Ol’ Dirty Bastard on “Got Your Money,” the Harlem-bred singer seemed set to play the role of Freaky Dance Diva. She had the hair — a huge technicolor afro — the clothes, the designer shades. What she didn’t have was an album that lived up to her image. Apart from the startlingly emotional “Caught Out There,” in which she bawled “I hate you so much right now,” most of her Neptunes-produced debut was surprisingly timid.The best thing about Wanderland is that 22-year old Kelis Rogers seems finally to have begun celebrating her eccentricities. She was never cut out to be a production-line R&B siren. This is a woman, after all, who claimed in a recent interview that “vacuuming is good on Ecstasy.”Wanderland, like its predecessor, is produced by the Neptunes — who, in the interim, engineered hits for Mystikal, Mary J. Blige and Britney Spears — but this time the beats are as brilliantly freakish as on the duo’s work elsewhere. “Young Fresh n’ New,” which opens the album, is a delirious four and a half minutes of rasping, intergalactic funk which sounds as if it was recorded in the engine room of the U.S.S. Enterprise.Even better, there’s a tripped-out, space-vixen vitality to Kelis’s vocals, as if she’s no longer overawed by the mad skills of her production Svengalis. Aside from the idiosyncratic lyrics (especially on the sassy, big pimpin’ put-down “Popular Thug” or her bizarre paean to extra-terrestrials, “Mr. U.F.O. Man”), she switchbacks from parodying ’70s mack-stylin’ (the Funkadelic “Daddy”) to an ’80s soul croon (“Scared Money”).These days, R&B overflows with freaky divas, from Macy Gray to Joi to Missy Elliott. Kelis may be out there, but at least she’s not all alone.