Nadine Kam photos Raiatea Helm showed her new CD, &ldquo;Sea of Love,&rdquo;  and LeSportsac &ldquo;Mele&rdquo; print pouch being sold together in limited edition, yesterday at the Ala Moana Center store. She&rsquo;ll be at an autograph session at the store from 2 to 5 p.m. today, Oct. 15.  LeSportsac has a long history of artist collaborations, but these have tended to be with visual artists whose work translates easily onto LeSportsac&rsquo;s ripstop nylon handbags,  totes, cosmetic pouches an