Madonna debuted "The Test" with her daughter, whose birth greatly inspired the pop icon's work on her 1998 album "Ray of Light."

1998: Madonna backstage in The Globe at the MTV Europe Music Awards 2000 in Stockholm. Madonna's Like a Prayer album debuts on Billboard's Vinyl Albums chart, decade after it was first released—and it gives the star her milestone tenth hit on the tally.

In celebration of Confessions II's release, Out revisited and ranked all 15 of Madonna's studio albums that raised generations of fans.