"Not Myself Tonight" is produced by Polow da Don, who swizzed up Chris Brown's "Forever" and Fergie's "Glamorous."
Image-wise, Xtina definitely seems to be going through a Madonna phase. She's even kind of talking through 1/3 of this song, like Madge was prone to do in the early '90s. (God, that was annoying.)
Anyway, "Not Myself Tonight" is out on iTunes April 13.