On July 14 1987, Madonna’s second studio album, Like a Virgin was certified 7x platinum (7 million units) in the USA.
According to author J. Randy Taraborrelli, “Every important artist has at least one album in his or her career whose critical and commercial success becomes the artist’s magic moment; for Madonna, Like a Virgin was just such a defining moment”.
Today In Madonna History 
It will always be that way-Like a Virgin just might be the best sophomore album in classic rock!
or True Blue… or Like a Prayer…or Ray of Light… or Confessions on the Dance Floor… She’s had a lot of those defining moments!
I would say this happened with True Blue rather than LAV. Although it was a massive album, M was still trying to prove herself as a legitimate artist. True Blue was once again a massive success commercially but also critically.