WATCH: Waltham Teen's Giant Prom Invitation

WALTHAM, MA – One Waltham High schooler gave new meaning to the term "prom-posal" this week when he asked a longtime friend to the big dance.

According to Waltham Newswatch, junior Zack MacDonald planned for more than a year to set up a giant sign on the side of the road to ask his friend Olivia Dobisz to prom. Passing motorists on Wednesday may have noticed the sign, which flashed "Olivia Dobisz...Prom??"

And in case you're wondering – she said yes.

Watch the video of Zack's "prom-posal" below, via Waltham Newswatch:

Photo courtesy of Kenji Ross via Flickr