It was a homecoming of sorts for Amy Heidemann and Nick Noonan, the two voices who make up the musical group Karmin, when they played the Mix Lounge in Boston on Saturday afternoon (August 18th).

“We used to walk down here all the time. Berklee is right down there,” said Nick pointing south from the Emerald Lounge, where the performance was held. The couple got their start right here at the Berklee College of Music in Boston’s Back Bay. “It’s very nostalgic,” added Amy.

As self-described poor Boston college students, Karmin had to find a way to get their music to the masses. “What’s the best way for us as broke musicians who just learned how to play these instruments… What’s the best way to get our music out there? And we were like, ‘touring!’ Then we were like, ‘Okay, we’re broke,’” Nick recalled. “Alright, so what’s the second best thing? And we were like ‘YouTube!’”

Releasing their original songs on the free video platform seemed slow going for quite some time, until Karmin started covering well known tracks. As the number of cover songs grew, so did the group’s hits on YouTube.

VIDEO: Backstage with Karmin

Since then, success has been a whirlwind for the recently engaged Amy and Nick – whose schedules are admittedly so busy, they have yet to find time to plan a wedding. Karmin had just flown into Boston earlier that afternoon from Toronto to hang in the Mix Lounge, and were off to play a show in Providence, R.I. later in the weekend. From Providence, it was immediately off to Mexico City for even more promotional tour stops.