Sales are more impressive than chart positions tbh
When was beys last multiplatinum (sales wise) single?
Wasn't X's in 2014

Xtina.

Nobody knows who Beyonce is in my country, sorry!

KGB wad 2008, Burlesque was Various Artists album.
Next, if you wanna grasp for Billboard they posted she topped Hot Tours chart multiple times with Mrs Carter. Also this is based on number of shows reported to BB not overall gross from the actuall year Polstar has clickec this multiple times.

It was Her track, Jay was a guest, but Christina is only sidekick chick to everybody from Maroon 5 to Gaga and Pitbull. For years now.

Beyonce was released in Friday in mediom not counted toaards charts i many countries. Xtina didn't see official #1 album since Bionic got the lowest selling n1 album record in 2010 in UK lmao. And Honey you don't want to get into n1 albums overall in a career.

DIL.

Now, when was Christina's last multiplatinum album?

Then again how much albums has Christina sold in past five years ww? Maybe around 1 Million unless you want to count albums where she was a feature

2014 single was that one indie band from their debut album. What Christina achieved as a main artist this decade? How many records did she sell as a main artist?

Shes featuring for everybody to stay afloat.

nope
it never touched 2 million nice try tho
Here are the album sales

Beyoncé
Total: 30,9 million
Christina Aguilera
Total: 37,3 million
http://atrl.net/forums/showthread.php?t=770888

christina is a lead artist on say something according to billboard