So Shanks was probably watching re-runs of Friends and other 90's sitcoms during the lockdown while Jon was listening to the Killers. That's how we got Do What You Can musically. Mystery solved
I'm giving it a 4. Yeah, it's kind of catchy, but so was Barbie Girl or the Britney Spears chart hits 20 years ago and I wouldn't rate them higher because of that either. The message is good, but that "friend you ain't met yet" line reminds me too much of the cringeworthy one in Welcome To Wherever You Are.