Kelly Clarkson, known for her powerful voice, kept it real when she nearly fell moments before singing the National Anthem at the Indy 500. The 37-year-old singer blamed her tumble on a crack hidden under the carpet and took to Twitter to share a hilarious video of the incident. She admitted that the best part of her day was revealing to people how uncool she really is. Despite the fall, Kelly went on to deliver a stunning performance.