Is a tennis ball yellow or green? I went to the US Open with IHG Hotels and resorts, and all I could think about was what color this ball is. So I asked my fellow attendees, yellow. I don’t care what anyone else says. Yellow. What do you say to people that say it’s green? I’d say, look a little harder. Green. If you think yellow, you think lemonade. If I got a lemonade this color, I’d be stupid. It’s yellow. Green. Pick one. Pick one. It’s like Brad. It’s Brad. Yellow. It’s yellow. It’s green. This is yellow to me. I guess we’ll never know the answer, but what I do know is that you can experience this with IHG 1 rewards because they’re the official hotel loyalty program of the US Open.