Married to Jonas Sneak Peak: Planning Katie's Party

Danielle wants to throw Katie the perfect graduation party, but things don’t go as planned. Watch what happens.

Being Married to Jonas isn't all about red carpets and getting a backstage pass to the Jonas Brothers' show.

Nope, because when you're Danielle Deleasa you've also got to plan your little sister Katie Deleasa's graduation party. Oh, and train the two puppies you have. And sometimes encounter surprise visits from your family.

See what happens when all of the stress comes to a head in the above clip, and tune in to an all new episode this Sunday at 10/9c only on E!