With Jack's Mannequin being retired, the band have released a final song titled "Wrecking Ball Heart," which you can listen to below. Frontman Andrew McMahon wrote in the blog post containing the song the following:
"I have been well aware, throughout my career, how rare it is for a musician to have such a genuine connection with the people who support them. The reaction to the final JM shows have certainly crystalized those realizations. There is little I could do to express my gratitude for this, but if anything, this is a small token. Late one night in Santa Monica I played my friend and long time producer, Jim Wirt, a demo of a song I wrote a few years back. No session was scheduled, but after a couple beers and some laughs we pulled out some microphones and cut it. The next day Jay and Bobby came through and did what they do best; selflessly and skillfully served the song. We weren’t making an album, and like the early days there was no label in place to release it. Just friends in a space playing music. I hope you enjoy it."