Kagamine Rin & Len (鏡音リン・レン) or Rin & Len Kagamine in the western order, codenamed CV02, were the second VOCALOID created by Crypton Future Media Inc., following Hatsune Miku. Although they didn't got as popular as Miku, they still remained one of their most popular sale. Crypton marketed them as "Two vocals in one" and are usually considered a single product. No current official statement describes their real relationship. Past, retired statement included them being Twins, or even lovers. The last current statement is that they have a single soul between them.