Pentatonixbecame a worldwide sensation in the early 2010s in what felt like an overnight ascent to superstardom.

And the journey, both for its members and the group as a whole, remains ongoing and powerful.

Of all of the members ofPentatonix, Grassi has probably had the biggest transformation over the years.

Mitch Grassi posing

Now, Grassi has embarked on a new adventure: solo music.

Here’s what we know about his solo side project.

But, now, he’s exploring his solo identity under the name Messer.

Mitch Grassi taking a selfie

According toPaper, this new project is darker and more experimental than his work with Pentatonix.

That doesn’t mean the EP is all doom and gloom, however.

Grassi discussed the EP’s title track with Paper.

“It’s really a feel-good track and a very hopeful one, too,” he said.

“The track is quite vast, so I wanted to pair it with simple lyrics.

So, how do you feel about Grassi’s solo project?