Conan O'Brien can rest easy. He doesn't have to worry about jumping networks to get a better gig. He's done his time. Today, Jay Leno announced his retirement from NBC's Tonight Show effective in 2009 and named Conan O'Brien as his replacement.

"In 2009, I'll be 59 years old and will have had this dream job for 17 years," Leno said in a statement. "When I signed my new contract, I felt that the timing was right to plan for my successor and there is no one more qualified than Conan. Plus, I promised [my wife] Mavis I would take her out for dinner before I turned 60."

The question remains, though, will O'Brien be forced into the Tonight Show mold or will he be permitted to carry over is loser, fresher style? Tune in in 2010 to find out.