On May 4 1990, Madonna opened the 12-city North American leg of the Blond Ambition World Tour 1990 at The Summit, in Houston, Texas.
On May 4 1990, Madonna opened the 12-city North American leg of the Blond Ambition World Tour 1990 at The Summit, in Houston, Texas.
Today In Madonna History 
And with that, Madonna was on her way live performer in Rock’s history, lifetime and existence! Express Yourself and Holiday-the highlights of Blonde Ambition!
Still Madonna’s most significant tour. Truly a game changer.