Fun Fact: It wasn't.
Funner Fact: Any Taylor era was more successful than Any Katy era

Much as I love to point this out when necessary, this has nothing at all to do with Christina and Britney.

EDIT: Plus, SN and self-titled are arguably smaller than TD; they both sold roughly the same, but one didn't have a tour and both had less singles sales by a mile.

Oh, but it was.
And not true.
Come back and drag when you use facts instead of delusional opinions.

@retro, would it be better if I put it like this?

Lotus did not sell 500k WW
None of her singles were as big as WB
Britney's residency is about to gross more than any Xtuna tour ever.

SUCCESSTINA strikes again

This is acceptable and tru.

SN and self-titled both sold less albums WW than TD.

Barely. They're both around 5.5 - 6m to TD's 6.5m, and SN's deficit is made up by it's lead in touring. They still mostly fall short in singles.

Lotus had Your Body which sold 500,000+ domestically and Just a Fool which sold 800,000.
Lotus > Britney Jean

was just about to say this

Teenage Dream was Definitely bigger than Self Titled tho so congrats!

Can't decide if this is beautiful or horrid

And Red

WB sold 900k+ and BJ outsold Lotus and the residency is about to outgross Tunas biggest tour.

But Red had a far bigger tour and isn't as far behind in singles as the other two; it was bigger overall (not to mention the albums difference is even smaller than the other two).

So a million more albums and forty million more singles. TD takes the cake.
And in terms of touring PRISM will be bigger than any of Taylor's tours.

Teenage Dream still sold tens of millions of singles more than Red though, let's not act like the gap is small.

No, Teenage Dreams' singles CRUSH Red's

Taylor only wins in touring and I thought we were talking in album sales only?

I wasn't acting like it was small - I just stated that the gap was smaller and more easily made up by the $90m touring difference than SN and TS, both of which - aside from selling less - had virtually no singles sales in the end, comparatively.

So BJ sold more than 500k singles less than Lotus.
And it outsold it by 50k WW.
Like I said, Lotus > BJ

at all 5 taylor eras being comparable with Teenage dream while NONE of katy's eras come close to 1989 or Fearless

1) As I had stated.
2) ... for like, a few months. With nearly twice as many dates as the Red tour.

Not sure where you got that idea.