Madonna has shown some skin yet again on her MDNA world tour after flashing her bum in Italy.

The singer was performing in Rome on Tuesday (June 12) when she revealed her rear during the song 'Human Nature'.

Whilst she only showed off a thong, the incident comes only days after the singer decided to flash one of her breasts on stage.

The Queen of Pop was performing in Turkey on June 8 when, also during 'Human Nature', she exposed one of her breasts.

Social networking website Twitter subsequently went wild as people pondered the reasons why the 53-year-old performed such an act.