The newlyweds are ready to mix business and pleasure with a concert tour.

"It takes a very strong, graceful person to come into a family as the fifth wife and have adult daughters who are older than her," David Foster's daughter said.

Sure, some people want to complicate her relationship with David Foster due to their age difference, but here's why the relationship works for her.

Don't eff with the Fosters — the newlywed couple has some choice curse words for their critics.

The new Mrs. Foster is ready for kids, but do her husband's daughters approve?

David Foster and Katharine McPhee used an actual sword to cut into this lavish, towering confection. 

Well played, Mrs. David Foster.

Katharine McPhee and her future family couldn't make it more obvious.

Spoiler: The timeline has us wondering if Katharine McPhee and David Foster are already (legally) married.

Here's why we know Katharine McPhee will marry David Foster by then.