Bad news for fans hoping to catch a glimpse of Britney Spears performing in the States any time soon. The singer, 44, vowed she'll "never perform in the U.S. again" in a post shared via her Instagram on Thursday, January 8. "Sending this piano to my son this year!!! she captioned a throwback photo of herself on stage sitting next to a piano. "Interestingly enough, I dance on IG to heal things in my body that people have no idea about. Yup and it's embarrassing sometimes... but I walked through the fire to save my life...