Gossip magnet refers to a person or object that attracts an unusual amount of gossip.

Gossip magnet指引发大量八卦传闻的人或物，即“八卦焦点”。

For example:

Kan is no Justin Timberlake -- or even a gossip magnet like Paris Hilton. But he is taking advantage of the same underlying forces that gave them star power. As media have gone interactive, stardom has become participatory.

Kan不是Justin Timberlake，更不是像Paris Hilton那样的八卦焦点。但是他却会让这种无形的造星力量为他所用。媒体已步入互动时代，明星圈自然也要参与其中。