Have you ever heard of a man taking his wife's last name instead of vice versa?

My cousin got married yesterday. At the end of the service when the preacher announced the new couple he said Mr and Mrs James and used my cousins last name. I felt bad, because I thought the preacher had spoken incorrectly. We found out at the reception that he did take her name, it was a secret for some odd reason. (Something to do with his family and him not liking them) I thought it was kind of cool. I’d never heard of that. Wonder if it’s the same as when a woman takes her husbands name as far as getting documents changed etc.