Hello how may I help you? What is the best selling record of all time? Did you mean the best selling record in the US or the best selling record in the world? In the US. The best selling record in the US is Thriller by Michael Jackson. Ok, what about the world? The best selling record in the world is also Thriller by Michael Jackson. Ok, thank you! No problem! Is there anything else I can help you with? Nope, that's all. Have a good day!