Madonna superfan Ron Martinez says the singer's energy and ability to connect to people of all ages is what makes her "incredible". The global musical icon's tour called 'Celebration Tour' was due to start 3 months ago, but the singer had to postpone it due to a health scare. Now, the first concert is set to take place at the O2 Arena in London tomorrow. Report by Czubalam. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn