Not Your Grandma's Proposal: Rise of Flash Mobs

We know there's a kind of marriage proposal olympics under way these days. The groom on his knee just a footnote to the ever wilder theater. So tonight abc's david wright wonders where will all this... See More

We know there's a kind of marriage proposal olympics under way these days. The groom on his knee just a footnote to the ever wilder theater. So tonight abc's david wright wonders where will all this end. It's a mating ritual of the youtube generation -- popping the question with over the top production values. I'd like to have your blessing, sir. May I have your daughter's hand in marriage? Reporter: In georgia, matt still created a movie trailer declaring his love for ginny jolner. That's her, down in the corner, her real-time reaction at the movie theater. Will you marry me? Reporter: In portland, oregon, isaac lamb got amy frankel's friends to lip synch to bruno mars. ♪ I think I want to marry you ♪ Reporter: These days, there are even flash mob proposal planners. It takes money and organization to get all those line dancers in place. Price tag -- as little as $2,000, as much as 10,000 bucks. Wedding proposals are out of control. I never hear a story where it's a simple, like, hey, marry me. Reporter: In june, outside the new york public library, a craig jones spent $9,000 -- to capture this moment. I didn't know how to show you I love you, so I figured I'd bring some friends. Reporter: -- To create and capture this moment. Alison leclaire, will you please marry me? Reporter: How could she possibly say no? David wright, abc news, los