Katy Perry

Talk about burning: Katy Perry's divorce was met with shock across the world but it took her just one public appearance to show just how strong she was without Russell Brand: the 2012 Grammys. She debuted her new but rather cryptic hit, Part Of Me, with electric-blue hair and a cyborg-like outfit. She later changed into a slinky gold Gucci gown and also appeared on the red carpet in a baby blue embroidered dress showing off her ample, erm, assets. Katy was the belle of the night; Russell Brand, please step aside.