Carrie Underwood has sparked an online stir with her high-slit metallic outfit that left her legs on display. Although public opinion regarding the star’s dress ranged from critique to praise, the commentary did not take away from the prestige of the event Underwood attended, where she celebrated a friend’s major milestone. Iconic musician Carrie Underwood served looks at the Songwriters Hall of Fame Induction and Awards Gala on June 13. Wearing a unique and eye-catching metallic dress, Underwood left jaws dropping to the floor as she posed on the red carpet alongside fellow friends and artist…