What you need to know

Today, celebrities are everywhere. Newspapers report their every move, and reality-television programmes film their antics. Celebrities also use social media to communicate directly with fans. As a result, their words and actions have more influence than ever.

Taylor Swift is a world-famous pop star. The video for her latest single is about her disagreement with another pop star, Kanye West, but some say that by publicly attacking him, she is setting a bad example.

Role models can make a difference to young people. Good role models inspire them to live well and be kind to others. Bad role models can do the opposite.