Singer Michelle Williams has dismissed rumours her former Destiny's Child bandmate Beyonce is pregnant with her second child, insisting "there's no truth" to the speculation.

The Drunk in Love hitmaker hit headlines on Sunday (11Jan15), when she posted a photograph of herself buried in the sand on vacation, sporting what appeared to be a baby bump.

Beyonce and husband Jay Z have remained mum on the rumours, but Williams has since cleared up the chatter surrounding the picture.

She says, "There's just no truth to it, sorry... First of all, if you look at the picture, the baby bump is, like, where her knees probably really are..."