Wake-up Call jokes

In Ukraine, there was a massive wake-up call by Russia. But for some, the results were the opposite.

What happens when Stephen Hawking wakes up from his sleep?

"Log in."

I woke up today, and my mom said it was 1940.

Mom: Wake up!

Me: No, I'm too disappointed and I have a headache...

Mom: Why are you disappointed?

Me: I took 12 random pills and I still woke up...

How do you wake up Lady Gaga?

Poker Face.