Kevin O'Leary is well-known for many things, including being one of the long-running "Sharks" on the hit investing show "Shark Tank." While the show has had many celebrity guests as sharks over the ...

"Shark Tank" investor Kevin O'Leary isn't known for tossing out compliments like free samples, but when it comes to Tesla CEO Elon Musk, he sounds like someone who's stopped debating the pitch and ...