To understand why this works, you have to look at the legendary tracks involved:

If you’ve spent any time in the electronic music scene over the last few years, you know that a great mashup is more than just stacking tracks—it’s about creating a new emotional arc. In his viral creation, manages to blend Latin urban vibes with peak-era Progressive House in a way that feels both nostalgic and fresh. The DNA of the Mashup

This is widely considered one of the greatest Progressive House remixes of all time. Its soaring synths and Ryan Tedder’s vocals bring a sense of euphoria to the mix.