Jessie J debuted a hot new hairdo last night.

The singer showed off a blunt bob as she stepped out at the 2014 Brit Awards with MasterCard nominations event in London. 

Keen to make an impact, the star teamed her ‘do with a tiny Alexander Wang dress and a quirky pair of Jimmy Choo caged boots. 

The 25-year-old, who shaved her head for Comic Relief in March 2013, admitted her new style is a cute wig.

She shared a number of snaps from her night on Instagram, including one of herself with Ellie Goulding.  

Jessie‘s vampy look comes after she channelled Elvis Presley with a supersized quiff earlier this week.

‘My hair is CRAZY,’ she wrote on Tuesday alongside a collage of four images.

‘Lol “uh huh huh”.’

SEE PICTURES Jessie J at the GQ Men Of The Year Awards

SEE PICTURES Jessie J‘s stunning make over at Glamour Women Of The Year Awards

SEE PICTURES Celebrity Hair: Do It Like Jessie J

Beth Shearing