Lyric discussion by Jacksgirl620 

Cover art for Not Myself Tonight lyrics by Christina Aguilera

I don't think the song is about Christina trying to reinvent herself. If she was trying to reinvent herself (again), why "In the morning when she wakes up will she go back to the girl she used to be?"

In the morning When I wake up I'll go back to the girl I used to be But baby Not tonight

That's just what I think. For all I know, this is a new, reinvented Christina.