Let it go, tear ducts.

Want to end your week on a sweet note? When Kristen Bell heard the story of six-year-old Avery Huffman, who was recently diagnosed with an inoperable brain tumor, she put on her best Princess Anna “Frozen” voice and left the little girl an awesome voicemail.

Bell even peppered some thoughtful personal references for Avery throughout the call. At one point, Anna excuses herself for a moment to return with great news — her sister Elsa decided to crown Avery as an honorary princess of Arendelle, because "she's heard that you've been such a good girl and that you've been so brave."

"I think you'll make a great princess," added Bell, as Anna.

To learn more about Avery or if you wish to donate, visit her CaringBridge page here.

Watch the video.