The Gatorade “Is it in YOU?” commercial series.
Stephen Hawking
That’s great!
Thanks. 
I was thinking how awful the Rock Hudson one was until I posted the Amadou Diallo blip. I hope nobody gets offended, I just have a dark sense of humour.
William Hung: “I’d Like to Teach the World to Sing”
“I’m jellin’ like a felon!” – Jabba the Hut
David Hasselhoff for…well, any hamburger fast food chain.