What a trouper!
And maybe it was having boyfriend Justin Bieber by her side that quickened the recovery process, but whatever it might have been, the starlet went back to the stage today to resume her Monte Carlo mall tour.
So why'd our girl get sick?
From what she tells us, it was a mix of being "malnourished, dehydrated and low on iron".
But she has a sure-fire way of not letting this unfortunate event happen again: "Just take care of myself better."
That's not all the celeb told us, check out the video above for more S.G. deets.