Rihanna works with one of the biggest make-up brands in the world, but she doesn't rely on MAC make-up to perfect her skin.
The singer reveals that she stops drinking alcohol when her skin breaks out.
Rihianna admits she has bad days just like everyone else and often cuts out booze in order to clear up her pores.
She explained: "When I feel like my skin has had it, I cut all the alcohol completely and overdo the water.
"The morning of the Chanel couture show last year, I was so jet-lagged that I really didn't sleep, and I had some wine the night before. I was like, 'Oh my God, I look old as shit! Who is this person?' "
And if drinking lots of water doesn't do the trick, the 'Diamonds' hitmaker suggests using lots of beauty products to look your best.
Speaking to America's ELLE magazine, she advised: "Mix moisturiser and a drop of foundation. That, some mascara, lipstick, and you're good. And fix those brows."
Born in Barbados, Rihanna loves lounging in the sun but wears extra sunscreen to protect her skin.
She explained: "I love going home and being reckless with the sun, but I notice now that under my eyes starts to get tan. I hate that! I have to put extra sunscreen there."
The 'We Found Love' singer - who has her own line of lipstick with MAC cosmetics - added that the lip-enhancing accessory is her favourite beauty product.
Rihanna added: "It draws attention away from any flaws. When someone is wearing lipstick, you just assume they're wearing a full face of makeup. And guys are stupid -- they won't notice when you're not."
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