Singer Britney Spears unveiled her new lingerie line as part of New York Fashion Week here.

The singer showed off her slim figure in a plunging red jumpsuit by Rhea Costa for the launch party Tuesday, as she was surrounded by models showing off her lacy and ribboned brassiere and knickers, reports mirror.co.uk.

With some stripping down to red and black lace numbers, others showed off their figures in lacy nightwear for The Intimate Britney Spears collection.

"This is something I've been working on for two-and-a-half years," Spears said on stage after the show.

"I'm really, really passionate about this," she added.