Rihanna candidly reveals the struggles of dressing her 'fluctuating' body and admits she 'pays attention every day

She's showcased countless risqué outfits to flaunt her famously sexy physique on stages and red carpets throughout her glittering career.

But Rihanna revealed on Friday that her outfit choices are frequently dictated by her 'fluctuating' body type - saying that from one week to the next she can go up or down a dress size.

The singer candidly confessed that she has to think about whether she is having a 'fat week' or a 'skinny week' when considering her wardrobe.

The 29-year-old starlet added: 'I really pay attention every day when I go into the closet about what's working for my body that morning,' she said, adding: 'It's an individual thing.'

She considered: 'If you take it further, it's like: "What week are you having? You having a skinny week? You having a fat week? Are we doing arms this week? We doing legs this week? We doing oversized?"'

Rihanna - whose full name is Robyn Rihanna Fenty - was speaking at an event in New York to promote her Fenty x Puma fall 2018 collection.

The fashionista's interest in all things sartorial has seen her work with Armani, Dior and Puma on ventures made in parallel with her supremely successful career as a singer-songwriter and actress.

She launched her Fenty Beauty line during London Fashion Week at Harvey Nicholls in Knightsbridge in September.