Mariah is No.1 in the U.S.

What a big first week sales.

Info below:

Mariah Carey earns her sixth No. 1 on The Billboard 200 as her "E=MC2" bows on top. The Island Def Jam set moved 463,000 copies in the U.S., according to Nielsen SoundScan, making it the diva's biggest sales week ever. It's also the highest sales week of the year, surpassing the 375,000 start of Jack Johnson's "Sleep Through the Static" in February.