Obama birthday plans: Wish the lonely prez a Happy B-Day!

In the immortal breathy words of Marilyn Monroe, "Happy Birthday, Mr. President."

President Barack Obama turns 49 Wednesday (Aug 4). Alone.

He will be without his wife Michelle Obama and daughter Sasha, who are vacationing in Marbella, Spain. Malia is away in summer camp. And his beloved grandmother -- who raised him -- passed away just before he got elected.

What's a lonely birthday boy to do? According to Politico, Obama will go home to Chicago and visit the Ford car plant, then dine quietly with a few friends and spend the night in his old apartment where he will -- if only for a short time -- probably contemplate his life and particularly,  the challenging and often frustrating last year.