Madonna (13/13) Mandy Moore (2.1/3) Marcy Playground (2/2) Mariah Carey (0/8) Marilyn Manson (4/4) Martina McBride (5/5) Mary-Chapin Carpenter (0/8) Matchbox 20 (2/2) Megadeth (9/11) Meredith Brooks (1.4/2) Merril Bainbridge (2/2) Metallica (8/8) Mindy McCready (0/4) Moby (1/9) Monica (2/2) Montgomery Gentry (0/2) Mya (2/2)