Bey was on tour as soon as her album dropped and by the time she finished a couple of weeks ago there weren't any big tv shows to perform on, which is the same for most the girls
Gaga and Xtine had/have really bad management (idk if Xtina changed hers) gaga going MIA 3 weeks after the album dropped pretty much killed all of its momentum which is why GUY is flopping s0b
Britney's album just seemed like something put out to earn some money and to shut the fans up, literally no thought had been put into it
Katy is the only on being successfully, but even then it's not a massive success and it's not really surprising with such basic generic music