Lady Gaga has announced details of two gigs in the UK and Ireland this autumn. Beginning with a date at The O2 in Dublin on October 26, the singer will also perform at The Odyssey in Belfast on November 1.Set to embark on the European leg of her 'Monster Ball' world tour next month, tickets for the autumn shows go on sale this Friday (April 23) at 9am (BST) Meanwhile, Lady Gaga has been praised by UK Prime Minister Gordon Brown, with the Labour leader claming he favoured the singer over Madonna.Lady Gaga Tickets are available online on GigSport