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Anderson Cooper Celebrates His ‘Loneliest, Most Pathetic’ Birthday With McDonald’s (Video)

CNN anchor visited CBS’ ”Late Show with David Letterman“ Wednesday

Anderson Cooper turned 47 on Tuesday.

Usually, such a milestone birthday is cause for huge celebration, but the CNN anchor told David Letterman on Wednesday’s “Late Show” that he marked it in the “loneliest, most pathetic” way possible.

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“I actually worked all day. I was working in Boston; I did my show from there last night, and I celebrated on the drive — I drove for five hours last night to come back, and I stopped at McDonald’s,” Cooper said in an advance clip of Wednesday’s show.

Cooper super-sized the special Big Mac treat, it being his birthday and all, but the girl behind the counter didn’t share his enthusiasm.

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“I said to her, ‘It’s my birthday,’ and she looked at me like I was the loneliest, most pathetic on the planet,” he said.

Cooper’s fellow CNN personalities also put together a surprise birthday video for the anchor Tuesday, which was half congratulations on making it to the big 4-7 and half bizarre roast.

Watch that video here: