Robin Williams/Daniel Powter/Wentworth Miller

The always entertaining and unpredictable ROBIN WILLIAMS chats about his new film "<b>R.V.</b>" Making his first appearance on the show, WENTWORTH MILLER visits with Ellen from Fox's breakout series "<b><i>Prison Break</b></i>." Plus, DANIEL POWTER performs the number one song in the country, "<u>Bad Day</u>," from his self-titled debut CD.