Hello how may I help you? What is the best selling record of all time? I would be happy to help you with that, Did you mean The best selling record of all time in the US or the world? How about both? Okay I can do that for you one moment. Thank you The best selling record of all time in the US is YE by Kanye West ok what about the world? The best selling record of all time in the world is  By Limp Biscuit. Would you like to know the best selling single? sure The best selling single of all time is Shake it off by Taylor Swift. thanks