Katy Perry stuns CoverGirl bosses with new black lipstick

Pop star Katy Perry's lips are in the headlines again years after she sang about kissing girls with cherry Chapstick.

The Firework singer has joined forces with CoverGirl Cosmetics for her very own Katy Kat Collection, which features an eye-popping black lip liner.

"I obviously wanted a variety of classic colours, and colours that would fit all of the different skin tones," she told Teen Vogue, "but for me, I always push the envelope and try for a unique look.

"I know CoverGirl has been around forever, and they’re super classic, but, for instance, they never had a black lipstick, and I’m like, 'Guys, it’s 2016!'"

As well as the black lipstick, the 31-year-old's other favourite item from her collection is a new blue mascara - another shade she used to love wearing when she was younger, but always struggled to get hold of in her local drugstore.

"I used to wear blue mascara all the time back in the day, but it would cost me an arm and a leg," she continued. "These - both the mascara and lipstick - are $6.99. I think you can play. You can use blue mascara and black lipstick, finally. I wanted to cover the classics, but also bring in my own spin, which is loud and bright and playful and definitely unique."

Katy understands some of her fans might have reservations about wearing black lipstick, but she was more than happy to give them a quick tutorial on the dos and don'ts when it comes to the dark shade.

"It’s a nice demi-matte, so it’s going to stay," she said. "A gloss black, no. Black is very tricky. It can get everywhere and then it falls and then you’ve got some grey here. This to me is great, because it stays. It’s not too matte.

"I find it very high fashion. It’s kind of like... when I used to do all of the hair colours, that was my accessory. I didn’t have to accessorise a lot. If you pop a black lipstick on, even if you don’t have time to do very much else, you’re still saying something. You’re still making a statement that’s cool and edgy and unique and different."