And it's due to high ticket prices

Barbra Streisand has been asked to cancel her concert in Rome next month due to high ticket prices, consumer groups in Italy have said.

The Adusbef and Codacons groups urged the city and the Italian Olympic Committee to deny the singer use of the Stadio Flaminio on June 15.

Prices ranging from 150 Euros (£100) to more than 900 euros (£600) were “absurd and shameful,” the groups said.

The 24,000 seat stadium “is public property and cannot be used for immoral deals that are shameful to a civilized country,” Adusbef and Codacons said.

Organisers of the concert were not available for comment.

The singer will be accompanied by a 58-piece orchestra on her month-long European tour, which includes concerts in Austria, France, Ireland and the UK.

Tickets for the her first date at London’s O2 Arena sold out in 20 minutes despite costing between £100 and £600, reports BBC.