Kid Rock 40th Birthday Celebration
Jan 16, 2011Public
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock backstage at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow backstage at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Martina McBride, Rande Gerber, Cindy Crawford, Sheryl Crow, Anita Baker,  Peter Wolf, Kid Rock, Joseph "Rev Run" Simmons and James Blunt backstage at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage)  Sheryl Crow, Kid Rock and Joseph "Rev Run" Simmons backstage at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage)  Martina McBride, Kid Rock, Sheryl Crow, Peter Wolf and Joseph "Rev Run" Simmons backstage at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)
Photo: DETROIT, MI - JANUARY 15:  (Exclusive Coverage) Sheryl Crow and Kid Rock perform during his "Born Free" tour opener at Ford Field on January 15, 2011 in Detroit, Michigan.  (Photo by Kevin Mazur/WireImage)