PERSON@1 -LRB- born March NUMBER@1 , NUMBER@2 -RRB- , best known by his stage names MC Hammer , Hammer and Hammertime , is a rapper , entertainer and dancer most popular during the late NUMBER@3 until the mid-1990s .

MC Hammer -LRB- born PERSON@1 on March NUMBER@1 , NUMBER@2 -RRB- is an MISC@1 rapper .
