LOL.

12 millions ww though

LMAO

Lets compare td era to the last era of every female artist except Adele:

Td vs btw: td wins
Td vs u: td wins
Td vs 4: td wins
Td vs red: td wins
Td vs ff: td wins

Katy is only second to Adele who is not a popster anyways, so yes she is currently the biggest female popstar

Those are right too tho. Katy's last tour grossed 60m while the latest tours by Madonna, Britney, Christina, Beyoncé, P!nk, Lady Gaga and Rihanna grossed more than that, and those tours were not supported by an album with 5 #1 songs

She also needed 8 singles (6 of them going #1), a movie, a re-issue, and 2-years of promo to make her album sell 6 million, while Gaga and Rihanna did that in 1 year, without movies, re-issues, successful singles (in Gaga's case) and promo (in Rihanna's case).

You forgot the Speak Now tour which also outgrossed Katy's and the North American leg of The Red Tour which is about to outgross it too.

According to the legitimate sources, it did not, and I am not here for shipments. Assuming they sold equal, td trumps btw in single success with I believe more than 20 millions singles sold

What legitimate sources?

And are you trying to say $1 digital track sales matter but tour gross doesn't?

SMH ... Born This Way Ball was a bigger commercial success than Katy's entire singles discography.

Let's assume your comparisons are true, this thread is about the "biggest female star" NOT "biggest female pop star"

What sources are you using? Because I have sources claiming td sold 12 millions. The only sources we can use are media traffic and music chart because they use a standardized method for all.

Yes...in an E.T world.

That is clearly Adele then