《はいよろこんで》是日本的创作者こっちのけんと创作并演唱的乐曲，于2024年5月27日发行。这首曲子讲述了本人在躁郁症的折磨下从自己的第1张单曲《死ぬな！》中获得救赎，以及在那以后的故事。 Even though I think about it, I still don't understand depression or manic depression, and I lose sight of "where the line is between illness and kindness and patience," so I made this song out of the hopes of getting into the habit of sending out an SOS every day. It's very painful, but I think it would be a good job to take a step back, remember the things you didn't like, and cry so hard that everyone around you notices. Besides, life is long, so even if you make a full recovery, you'll be worn down again. Let's keep our hearts on the edge and live our lives in uncertainty.