Paramore star Hayley Williams has dismissed rumours she is expecting her first child and blamed the pregnancy story on Internet "weirdos".

Fans took to to congratulate the singer after pregnancy gossip surfaced earlier this week (beg13Oct14), but Williams has now moved to silence the speculation by insisting she is not having a baby with her longterm boyfriend, rocker Chad Gilbert.

In a post on Twitter, she writes, "Don't need no more 'Hayley's preggo' rumors (sic)... Ugh, internetting is so hard cause (of) weirdos and bullies (sic)."

Williams previously used Twitter to deny rumours she is engaged to Gilbert, who she has been dating since 2008.