Beyonce's currently in Japan promoting her upcoming release of "B'Day". Her new nickname for Sean Carter better known as Jay-Z is quite charming...I'll never call him that! Wonder if there's a story behind the nickname...

" ...Knowles still seems loath to discuss her relationship with Carter in great detail. When asked to identify the man she calls "PopPop" in B'Day's liner notes — "Thanx 4 upgrading my album (twice)," she writes; "Did you know you were the coolest man alive?"— Knowles sighs.
"Why did I write that?" she wonders, then says, suppressing a grin, "I'm sure people can figure out who that is." (For the record, it's not Mathew Knowles, who is simply called "Daddy.") "