WHEN Palmer United Party Senator Jacqui Lambie announced burqa-wearing Aussies would face a fine of up to $3400 under a new law to be introduced, the story shot straight to the top of Facebook's trend list.

>> Lambie's burqa ban would make it illegal to cover your face

The story caused quite a stir on social media with Facebook posts being flooded with comments:

And Twitter with the hashtag #burqaban: 

Hugh Jackman was another trending topic this week when it was revealed the Aussie actor had received treatment for his third skin cancer this year.

>> Hugh Jackman treated for third bout of skin cancer in a year

Hugh took to Instagram to reinforce the message of using sunscreen:

Which prompted messages of support from his followers.

Robbie Williams was also trending on social media this week but for a rather unusual reason.

During the birth of his second child this week, the 40-year-old singer took to social media to live-blog, posting videos of his wife Ayda's labour on his YouTube channel. 

>> Robbie Williams posts wife's labour video online

While Robbie entertained fans with amusing videos from the hospital room during the 14 hours labour, including a rendition of Frozen's 'Let It Go' (while his wife appeared to be giving birth), the couple did welcome a baby boy into world at the end.