In all honesty, the reason Janet will probably outsell Tamar is bc she is JANET JACKSON; however, musically, Tamar has the better body of work by far. Lol. Anyone with ears can hear who is the better vocalist of the two. But, hey. Tamar is doing da*n good for an R&B ARTIST. SO HAPPY FOR HER! Crazy that once upon a time it was K. Michelle v Tamar. Tamar has far surpassed K. Michelle as far as her reach. Plus, no shade to K., but Tamar has more mainstream appeal.