After 60 years, IHOP has announced it’s changing its name – by literally flipping a letter. The International House of Pancakes tweeted this week that the “P” in its name will soon be flipped to a “b.” But what the “b” stands for remains a mystery for now. The company is teasing fans on Twitter, telling them they will find out what the “b” means on June 11. The Twitter bio for IHOP has even been changed to read, “What could the b be? Find out 6.11.18” Twitter users have been responding to the teaser tweet with their guess of what the “b” could stand for. The most popular guess so far has been breakfast but the restaurant chain responded to one user saying, “Nice try, keep guessing.”