VIDEO: Oprah's Screaming Celebrity Shout-Outs

With less than two years left until Oprah Winfrey’s departure from her acclaimed daytime talk show, it is only right to pay tribute to her signature celebrity scream. Oprah is known for calling out her celebrity guests with an excited yelp. Take a look back at some of O’s best celebrity shout-outs  from her 25-year daytime career.