Missy Elliot won the most number  of Grammy Award for Best Rap Solo Performance from 1991-2011 for her works "U.N.I.T.Y." , "Scream a.k.a. Itchin'" and "Work It'".
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2006 2005 2007 2008 2009 2010 2011 MC Hammer LL Cool J Sir Mix-a-Lot Dr. Dre Queen Latifah Coolio LL Cool J Will Smith Eminem Will Smith Eminem Missy Elliott Missy Elliott Nelly Missy Elliott Eminem Jay-Z Kanye West T.I. Kanye West Lil Wayne Jay-Z Eminem 
