Madonna raves on as tour begins :

Madonna has begun her new world tour in Cardiff, proving to fans that she can still cut it on stage at the age of 50.
In a typically energetic performance, the pop superstar played two hours of hits from her 25-year career.
It featured radically reworked versions of some of her old favourites, such as a techno remix of Like A Prayer and a rock take on Borderline.
"She gets better with age," said Lewis Aldous, 23, from Brentwood, Essex.
He said Madonna looked "incredible", adding: "She looks like she's in her 30s. This is the most fast-paced tour of recent times, especially Like A Prayer."
Maria Paradisis, 32, who travelled from Sydney, Australia, for the show, said Madonna's dancing was "mesmerising".