Watch PVRIS' Lynn Gunn perform with Tonight Alive at Warped

Today in Hartford, CT, PVRIS hopped back on Warped Tour for one day only.

Read more: PVRIS perform stripped back version of “You And I”—watch

It looks like frontwoman Lynn Gunn made the most of the day. She joined Tonight Alive on stage for a one-off duet performance of “Lonely Girl.”

Check out the video below, via PVRIS Daily on Facebook!