First, my husband and I are already married, but we eloped because we couldn't afford a big wedding before he deployed. We're planning to renew our vows next summer with a big white wedding for the whole family to be there. However, our wedding date is 4 days after my parents' 25th anniversary. I don't want to steal all of their glory, so I was wondering... is it a terrible break of wedding tradition to make my rehearsal dinner a surprise party for my parents? The wedding is going to be pretty informal as it is, so I'm hoping it won't be a huge deal, but I was just wondering what people thought of this?