Rihanna has shed light on her unusual dress code, asserting that she does not like wearing a bra and a top at the same time.

The 'Umbrella' hit maker told America's Vogue magazine that if she is wearing a top, she doesn't wear a bra and if she wears a bra, she just wears the bra, the Mirror reported.

The 25-year-old singer also admitted that she has a tendency to forget to wear her undies and that as a teenager she preferred boys' clothes over dresses.