http://go.bloomberg.com/political-c...hristie-to-attend-howard-stern-birthday-gala/ New Jersey Gov. Chris Christie has kept a low profile since â€œBridgegateâ€ â€” the scandal over the politically inspired closing of lanes onto the George Washington Bridge â€“ erupted earlier this month. That could change tomorrow with his scheduled appearance at a birthday bash for radio shock-jock Howard Stern at Manhattanâ€™s Hammerstein Ballroom. According to the New York Daily News, the party to mark Sternâ€™s birthday â€” which was Jan. 12 â€” will feature performances by Jon Bon Jovi, John Fogerty and Steven Tyler. Stern, whoâ€™s found a home on SiriusXM satellite radio in 2006 after running afoul of more buttoned-down terrestrial radio bosses, is known for pull-no-punches, often raunchy broadcasts that have been known to feature strippers and porn stars. Colin Reed, a Christie spokesman, didnâ€™t immediately return a call seeking comment. This, of course, was the big 6-0 for Stern.