After 60 years of being IHOP on 06.11.2018 it will be #IHOB why the B?

What do you think the B is for? 

For 60 pancakin’ years, we’ve been IHOP. Now, we’re flippin’ our name to IHOb. Find out what it could b on 6.11.18. #IHOb pic.twitter.com/evSxKV3QmT

— IHOP (@IHOP) June 4, 2018