Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Madonna.com Calls Shots on Ring Tone Offer (Reuters) Reuters - Madonna and m-Qube have\made it possible for the star's North American fans to download\polyphonic ring tones and other licensed mobile content from\her official Web site, across most major carriers and without\the need for a credit card.

Sci/Tech