The hidden track “Fat and Alone” wraps up Heartbreak in Stereo with a humorous song that takes a sharp contrast from the rest of the album’s dark nature. In it, it discusses an overweight protagonist whose life’s looking pretty gloomy at the moment due to their conditions.

It’s most likely that the song was written as a joke, as you can hear a large amount of laughing during the recording, so it probably came as a shock to the band when this ended up becoming one of their most popular songs.

In a 2021 interview, former guitarist Neil Sabatino spoke about the song:

I think Shaun and Frank were chanting “Fat & Alone” and it was a directed insult at someone, and I just thought the phrase was funny and I was dabbling in singing my first couple of songs at the time and it just kind of happened. We definitely thought it was funny and pretty catchy. We also loved the idea of a hidden track. However, fast forward twenty years and it’s kind of insensitive and immature, and the guys wanted to leave it off of the album going forward. Which, if it was perceived as an insult towards anyone, I am on board with it not being out there. You can find it if you really want to on YouTube. When I personally sat down to write it, it was actually more me thinking of how I was a fat little teenager and was more self-deprecating, but I was pretty thin when I was in Pencey so who was going to believe me? For any big boned people who take it on as an anthem, I’m right there with you, it was written by a fat kid for fat kids. I have been on a diet since 1997 so that I can stay an average weight.