Music is to football as doping is to sport: it'll always be there. It's not always welcome, but it's always exciting.
And, it seems, the reasons sporting icons succumb to doping are the same as those that push them to make music - betterment and fame. Spoiler alert, it doesn't always work.
In the wake of the pulsating new release from retiring goalkeeper Petr Cech, it seems as good a time as any to construct the definitive list of footballers' musical ventures. The rabbit hole was dense and fraught, but we have emerged thankfully unscathed.
Well, not from these.