The new technology will be on display at stops on Miranda's Platinum tour. The Crystal Light poster uses conductive ink to sends a signal to a tiny processor that sends the music through a mega-watt speaker attached to the back of the poster.

Miranda says, "I’m always thrilled to introduce new ways for my fans to interact with my music. What better way to kick off the Platinum tour than with my favorite brand Crystal Light, and a fun, unique way for concertgoers to enjoy my album.”

Miranda's Platinum tour continues through October.

Follow @ABCNewsRadio
Copyright 2014 ABC News Radio

But the proposal actually happened months ago and, since the end of filming, the two have had to sneak around Atlanta, where they both live, to see each other.

"We kind of just chilled all the time," Murray told ABC News. "We couldn’t do anything outside, obviously, and [we wore] a lot of disguises: wigs, hats. [And there was a lot of] coming over back ways."

To pass the time, Dorfman, 27, cooked meals for Murray (think short ribs and steak) and even taught him to love sushi (almost!) as much as she does.

"I'm like, 'I'll take three sashimi combos,'" she recalled, laughing. "I've got to feed him at all times."

Added Murray, "She's an amazing cook. She cooks any and everything."

Now that the world knows that they're engaged, the couple can't wait to go on their first real date. While they declined to reveal specifics, they did say that they've already picked the restaurant.

"We're going to a good steak place," she said. "But we don't even know when we're going to be able to go."

Added her smiling fiancé, "It's just going to be nice for her and I to not have to hide anything."

Follow @ABCNewsRadio
Copyright 2014 ABC News Radio