Opeth to the Beatles in 12 Simple Steps

Wow, this is a mess. The guy that got 20 the first time is from Canada. And Shadows Skulk got 20 twice after the deadline... hmm... what to do..
 
Looking for a Job said:
well the guy who had 20 the first time actually said 21, so he lied. give it to skulk

No, the website changed something. It was 21 when I checked the day this topic was made.

I said Powerman 5000 to Cado Belle is 25 steps. I live in the US, so I should win.
 
the script finds the shortest link between two bands, so as new bands were added to the database, a new, shorter connection was made, so that's why it went from 21 to 20.
 
Wow, shit.

Atheist -> Cadallaca = 27 steps. One more step and I'll be at the longest link possible. Yes I realize that it doesn't include Opeth. I wasn't attempting to win.