M.I.A’s legacy of wild, exotic sounds, is continued on “Come Walk With Me,” although the dance-pop number does enter new, uncharted territory. After a lengthy wait, M.I.A’s fourth LP, Matangi, will be released this November. There are definitely shades of the old M.I.A on “Come Walk With Me,” but once the track breaks away from its mellow opening into an all-out freak fest, it seems that Matangi might be ushering in a new era for the ever-controversial artist.