 Complete the following phrase:  On June 1, 2009, Co OBrien who had succeeded Letterman as host of Late Night in 1993 took over as host of The Tonight Showan event Letterman referenced in his own shows Top Ten List on that nightand Lettermans feud with Leno temporarily ceased. In 2008 Letterman told Rolling Stone that he would welcome Leno on his show once Lenos tenure ended. Letterman said on competing with OBrien, I still find it hard to believe that Jay wont be there. The interview was held prior to Leno announcing his return to NBC for The Jay Leno Show. In the second week after Letterman and OBrien began their opposing broadcasts, viewer ratings for Tonight began to slip and Late Show was poised to beat Tonight for the first time in over ten years, a fact pointed out by Lettermans guests on air Howard Stern and Julia Roberts. Letterman quickly tried to change the subject in the interviews and tried to avert a new rivalry. In fact, the June 9, 2009 episode of Late Show featuring Roberts rated better than Tonight with a 3.4 household rating nationally to OBriens 2.9. The LettermanLeno feud was revived in the wake of the 