1. Traveling Wilburys Join Rihanna Atop U.K. Charts

    June 18, 2007 12:00 AM EDT As Rihanna starts her fifth week at the top of the U.K. singles chart with "Umbrella" featuring Jay-Z (Def Jam), there's a surprise name at No. 1 on the album bestsellers list. The Traveling Wilburys' As Rihanna starts her fifth week at the top of the U.K. singles chart…