<p>amazon.com</p><p><strong>$1.29</strong></p><p>If you've watched the 2020 Christmas rom-com "Happiest Season," you probably remember this fun indie pop song from the movie's soundtrack, from sister-duo Tegan and Sara.</p><p><strong>RELATED: </strong><a href="https://www.goodhousekeeping.com/holidays/christmas-ideas/g23568017/romantic-christmas-movies/" rel="nofollow noopener" target="_blank" data-ylk="slk:42 Romantic Christmas Movies That Will Warm Your Heart This Winter" class="link ">42 Romantic Christmas Movies That Will Warm Your Heart This Winter</a><br></p>