Lady Gaga says she changes her appearance when she feels "restless", and takes inspiration from designer Donatella Versace.
The 28-year-old performer, who is famous for her bizarre outfits, has told Porter magazine that the period between September and December 2013 were the "most manic performance of my life" because of how unsettled she felt.
"That's when I know my soul is restless," she told the interviewer.
Gallery: Lady Gaga's quirky fashion