Has Mel B become the first celebrity to wear a 'selfie' Halloween costume? Stars pull out all the stops, dressing up as little devils, ninja turtles and ghouls... while the singer dresses up as HERSELF

Wearing her iconic leopard print catsuit from her pop glory days, Spice Girl Mel B (centre) rewrote the dressing up rule-book by going as herself this Halloween. The X Factor judge wore her hair in ringlet curls and showed off her cleavage as her alter ego Scary Spice. Jade Thirlwall from Little Mix also flaunted her curves in a skin-tight leotard with blue scales as part of her X Men outfit (far left). Daisy Lowe (second left) and Tulisa (third left) both slipped into their sexiest catsuits. Kelly Brook (fourth left) stood out from the crowd in a sexy devil outfit which showed off miles of leg. Singer Rita Ora (fourth right) pulled together everything pink for a Barbie get-up, which was also reminiscent of Elle Woods in Legally Blonde. Provocative dresser Rihanna (third right) ditched her sexier garbs for a Teenage Mutant Ninja Turtle outfit. Supermodel Kate Moss morphed into her protégé Cara Delevingne, with a characteristically tomboy ensemble of a hoodie, trainers and dark jeans (second right). The queen of Halloween, Heidi Klum, hosted her annual bash wearing a brightly-coloured butterfly costume (far right).