Lady Gaga [1] channeled her inner punk rocker when she attended the Grammys on Sunday night. Wearing a revealing black top, short shorts, tall leather boots, and newly pink hair, the "Million Reasons [2]" singer looked too cool for school as she strutted her stuff on the red carpet. Not only did she pose alongside Metallica ahead of their performance [3], but she even showed off her brand-new moth tattoo [4] that she got to celebrate the special occasion.