The usually raven-haired singer, 26, was spotted sporting a new red do whilst taking time out from her California Dreams tour to relax poolside with friends in Miami, Florida.
But she revealed that she is actually trying to get her hair to another, secret colour, and the red is necessary to stop her long tresses from snapping off.
Last week she Tweeted, 'Tonight I dye my hair a different colour... Can you guess which colour?!'
But she later admitted, 'So I didn't get to the exact colour I wanted from being black for so long! 2get to goal I have 2b GINGER for 3WKS.'