The 2016 Rio Olympics will kick off with a three-hour opening ceremony featuring Anitta and fellow Brazilian superstars Caetano Veloso and Gilberto Gil - and the 23-year-old is still pinching herself at the prospect of performing on one of the sports world's biggest stages.

"I'm very happy with this opportunity," she tells Billboard. "I couldn't believe it when I found out I was invited. The whole world will be watching, and that's very important for me.

"I come from the ghetto in Brazil, where we don't have a lot of career opportunities, so I'm sure my family and people who live there never imagined that one day I'd become a singer and be able to perform at an event like the Olympics. I just can't believe it's happening!"

Anitta is keeping the details of her performance under wraps, but she tells the publication she will be "singing some classical Brazilian rhythms that involve samba and bossa nova".

"I think it will be a very interesting mix and people will get to see a bit of what we have to offer," she smiles.

And she hopes the Olympics will help the world see there a lot of positives in her homeland, amid stories about economic collapse and inner-city violence.

"We have a lot of problems, but what we will show is that we have hope, happiness and strong people," she explains. "We have very powerful people with a very good heart. We know how to receive everybody with a smile and we throw good parties."