The pop superstar insists the ever-changing venues will stop her from getting "bored" on the road.

She explains, "Originally I had the idea that I wanted to do a little bit of everything - some small, some sports arenas and then stadiums."

The tour will kick off in Los Angeles in May (06). Full dates and venues are yet to be announced.

MADONNA in scenes from her on-tour documentary 'I'm Going to Tell You a Secret' USA - 21.10.05