LeAnn Rimes came under fire from the online community for being too skinny after new photos surfaced of her at a basketball game last night -- and now she's firing back!

Rimes, who was criticized for looking too thin while singing the National Anthem at the Butler vs. UConn game Monday night in Texas, took to her Twitter to address the haters.

"To those who have to turn to other's lives and judge with no real knowledge of how anyone lives, you can you know what!" she posted earlier today.

Responding to another Twitter user who asked if she was starving herself, Rimes also tweeted "dear lord! I do not workout too much nor do I starve myself. I'm so over this and moving on."

As for her performance, Rimes says it's "Always an honor to honor our country. Very proud of last night. Still on a bit of a high. Thx you all fir such kind kind words."

Check out the gallery above to see more recent Rimes photos.

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