Nicole Kidman switched Hollywood glamour for country cool in an Instagram post this week and fans went wild for the makeover. The Bombshell actress, 53, straightened her trademark curly hair, threw on a backward baseball cap, and ditched her heels for knee-high cowboy boots, prompting her followers to bombard her with their first impressions.Nicole looked pensive in the photo and captioned it: "What do you think I’m thinking in this photo?"One fan responded: "I should really turn this cap