ABC News' Rick Klein reports: Washington gets all dressed up this weekend — and suddenly becomes a cool place for Hollywood types to be — with the annual extravaganza that is the White House Correspondents' Association Dinner. We talked through what to expect on ABC’s “Top Line” with Tammy Haddad of Haddad Media, a veteran television producer and prominent Washington hostess, whose annual garden brunch has become a major highlight of the weekend’s festivities. Politicians usually hold the power in Washington, but this weekend, the media calls the shots, she said: “This is the only time they call us and beg…. This is the only time where everyone has to stand in line together.” We got Tammy’s take on the boldfaced names in town — the A-list of DC, NY, and LA — and an intriguing question: Will top Wall Street executives want to see and be seen? And she tells us why the best place to be is seated between Pamela Anderson and Lauren Conrad. Anderson herself had the perfect take on the weekend, Haddad said: “Everyone here has an agenda.” Watch our discussion with Tammy Haddad HERE. Check out her Website, WHCInsider.com, for more of what to expect this weekend. Plus, I’ll be working the red carpet tomorrow night with Ana Marie Cox of GQ Magazine — stay tuned to ABCNews.com and ABC NewsNOW for the best of our interviews with celebrities from both coasts.