Consumer Electronic Show or Celebrity Electronic Show?

So I was really suprised, but there were quite a few celebrities at the CES (I guess different ones are there every year). This year I personally only saw Lady Gaga and the guy below from Parks and Recreation. He was on a skit for Intel's keynote presentation. They were pretending they were in the future, but in reality they were just in front of a green screen on the side of the theater. I also saw Shannon Miller ( a gold medal US gymnast).

I guess Dr. Dre was there, as was Drew Carey, and some MLB and NBA players too.

Lady Gaga (her hat at least!) I didn't even know who it was at first, but I knew from all the pictures it must be someone important/famous!