Pink has undergone surgery to have her gall bladder taken out in LA. A rep for the 32-year-old pop star said, “Pink had her gall bladder removed and is out of the hospital recovering nicely.” But the singer didn’t have any kind words for the lost organ. Pink wrote on Twitter, “F-YOU gall bladder! SAYONARA!!!!!!!” She had good reason to be annoyed, having had to cancel a performance on Wednesday night at a Hollywood fund-raiser for President Obama. She was also forced to celebrate her daughter Willow Sage’s first birthday in the hospital on June 2. Pink later tweeted: “So now I have let down my daughter and the president. wow. great week.”