LADY GAGA has gone under the knife. Yesterday morning, she Tweeted,  "Going in for surgery now. Thank you so much for sending me love and support. I will be dreaming of you."   There are no further updates. 

Last week, Lady Gaga was forced to cancel the remaining dates on her tour after being diagnosed with a "labral tear of the right hip," which was caused by "strenuous repetitive movements in her performances."