Britney Spears has released extra tickets for her 'Circus Tour' which is coming to Dublin's O2 on June 19 and 20.

Taking the 'Circus' theme to full effect, Miss Spears will have 50 dancers, magicians, clowns and acrobats on stage with her as she sings songs from her decade of work.

The 'Circus Tour' is her first tour since her infamous breakdown and comeback. So far, the tour has had very few hitches apart from obsessive fans going onstage and Britney's tendency to blurt out inappropriate things.

The 'In The Zone' tickets and seated tickets are €86.25, €116.25 and €136.25 and the standing tickets are going for €93.25.

The tickets will be on sale from 9am on Monday June 8 from ticketmaster.ie