The Aussie star also wore a Balmain jumpsuit with an intricate cross-body neck-tie last month worth an eye-watering $4000.
And during Tuesday night’s episode Delta poured her curves into a sexy leopard-print corset dress by Dolce & Gabbana. The price? $2000!
Even the star’s casual garb comes at a cost. In a rehearsal video, the singer is wearing a $1,700 Gucci t-shirt.
Delta's designer addiction isn't her only secret. Watch below to see Guy Sebastian reveal all about their secret dates:
