Robert & Kristen Lopez Pen Duet for FROZEN's Anna and Kristoff

Love truly is an open door -- for the right couple this time!

FROZEN writing team Robert Lopez and Kristen Anderson-Lopez Tweeted today that they had finally penned a duet for the Disney feature's star couple Anna (voiced by Kristen Bell) and Kristoff (played by Jonathan Groff).

We can't wait to hear the tune, but no word on whether it will appear on Broadway or in the much-rumored sequel. The Lopezes previously shared they had written "about a dozen" new songs for the upcoming stage version of the movie musical.

Plus, HAMILTON creator and star Lin-Manuel Miranda, who coined the nickname "Groffsauce" for actor Jonathan Groff, chimed in to the conversation, saying:

FROZEN won two Academy Awards (best animated film and best original song with "Let It Go") and a Golden Globe (best animated feature film). It is the fifth highest grossing film of all time and the highest grossing animated film earning more than $1.27 billion globally. Released wide domestically on Nov. 27, 2013, FROZEN posted the No. 1 industry all-time Thanksgiving debut and Walt Disney Animation Studios' biggest opening ever. The film's Feb. 25 digital debut was the biggest digital release (sell-through) ever; it's Blu-ray/DVD release on March 18 was No. 1 on the Nielsen overall disc charts for eight nonconsecutive weeks. The FROZEN soundtrack spent 33 weeks in the top 5 on the Billboard 200 chart, including 13 weeks at No. 1. It is certified triple Platinum, selling more than 3.6 million units. The "Let It Go" film clip from FROZEN has been viewed over 370 million times on YouTube. Topping the National Retail Federation's Hot Holiday Toys survey, FROZEN product popularity continues to soar: more than 3 million role-play dresses have been sold in North America alone, the "Disney Karaoke: Frozen" app reached No.1 on the iPad Entertainment Downloads category in more than 100 countries.