Plot: ROB LOWE, one of Ellen's favorite people, stopped by to tell Ellen about life on "Parks and Recreation," and about his new book, "Stories I Only Tell My Friends: An Autobiography. " British comedy phenomenon JACK WHITEHALL makes his hilarious US talk show debut and shows us what all the buzz is about! Entertainment Weekly and People magazine are calling it one of the hottest breakout songs of the year -- ASHLYNE HUFF performs her single, "White Flag