U2 urge fans to get political

U2 are calling on their fans to show their support for Burma.

The Irish rockers want their gig-goers to don face masks at their upcoming shows to highlight the struggle of a political prisoner in the country.

The Irish rockers are embarking on a mammoth stadium tour, which kicked off in Barcalona, Spain, on Tuesday night.

And the band are hoping that fans will show their support for the leader of the National League for Democracy in Burma, Aung San Suu Kyi, who has spent 13 years under house arrest.

The group want their fans to download her face from their official website - and wear it during their track Walk On.

Frontman Bono is a longtime social and political activist.