But most times we get it all wrong and get super surprised with the real age.
Well, we have came across celebrities we didn't know they are agemates. As if that's not enough, we were pretty surprised at how some celebrities don't even look their age.
For example, who would have thought that Brenda Wairimu is 28? I mean she looks like an 18-year-old.
Well here are celebrities you didn't know are agemates;