Claim: 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'".
Evidence: 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