Topless Hayley Williams pic posted online

Hayley Williams has claimed that her Twitter account was hacked after a topless photograph of her was posted on the site.

The semi-naked image of the Paramore singer appeared online in the early hours of this morning but was quickly removed.

According to screencaps of the page, one follower immediately quipped: "My dreams have come true. Thank god for the 'print screen' button."

After the photograph was removed, Williams wrote: "Well... my night just changed drastically. got hacked."