CNN Piers Morgan Tonight February 17, 2012
insanity? one fan wants to know. this is "piers morgan tonight." good evening, the big story tonight, details on the whitney houston investigation. her ex-husband bobby brown will attend. kevin costner, her co-star in "the body guard" will break his silence. performances by alicia keys and st stevie wonder. later, ricky gervais on the price of fame. >> i think it was oprah who said if you don't know who you are by the time you become famous, it will define you. i think, you know, these things don't command me. i love the work. >> we begin with the latest on the whitney houston inve...