Lady Gaga has a new look! On Thursday, March 28, the pop star shared a snap of herself with bleached eyebrows after rocking platinum blonde hair and brown brows for years. The upload — which featured the stunner holding up a peace sign while in the car — was in honor of the singer’s 38th birthday. Gaga also shared an emotional message, where she reflected on how great her life has been lately. “Today has been so special — I can’t remember a time I was so happy on my bday. I am in love with my best friend, my family and friends are loving and kind and healthy,” she began, referencing her relati…