Hi °C | Lo °C 
POP Queen Madonna has become the latest celebrity to join photo sharing site Instagram.
Although the 54-year-old joined the site last November, she has only began posting pictures in the last few days.
She greeted fans on Sunday as she drank a martini, saying: “Cheers, motherf---ers. I'm on instagram.”
She followed it up a day later with a picture of her sweaty cleavage saying: “Addicted to sweat !!!!!”
The material girl follows in the footsteps of Justin Bieber, One Direction and Taylor Swift, who all use the site.
