But Beyonce is the only female artist to have ALL her solo albums hit #1.
Everyone thought Britney's fifth would open at #1 and... but let's wait for her first post-baby album. Ironically, "Blackout" was Britney's first post-baby album as well.
With "Femme Fatale" she became the youngest artist to have a #1 album in three decades, the youngest female artist to have six #1 albums, the third female artist with most #1 albums, the only female artist whose first seven albums have debuted in the top two slots on the chart, the only female artist to have six albums debut at #1, and also the female artist with most #1 albums this millennium.