Demi Lovato is replacing Ariana Grande at the MLB All-Star Game concert at Cincinnati’s Great American Ball Park this Saturday night, Billboard confirms. Speculation is running rampant about what caused the "Break Free" songstress to pull out of her performance.

The pint size singer tweeted Monday that she is having her wisdom teeth removed, so we bet that will be her excuse, but we have to wonder if her "I Hate America" rant at a donut shop with her new backup dancer boyfriend Ricky Alvarez might be the real reason? The chart topper is receiving backlash for her anti-American comments, and she probably wants to lay low until the scandal blows over.

In case you missed it, the brunette beauty was caught on camera licking donuts on display when store employees weren't looking, and then when she spotted a giant tray of pastries, she seemingly fat shamed our whole nation! What the f**k is that? I hate Americans. I hate America," she sniped.

Whatever the reason, Demi is way better anyways!