The highly-rated episode " Christian Rock Hard " is sometimes searched by this shortened name, though it is actually Season 7, Episode 9.
You can find the episode on platforms like Apple TV and other major streaming services. Other Possible Matches [S20E2] Rock Hard
There is a podcast episode titled "S20E2: Rock Hard Liquor" which discusses Marvel content and characters like Peter Parker and MJ. Marvel | S20E2: Rock Hard Liquor - FANGASM The highly-rated episode " Christian Rock Hard "
The episode includes a segment where Peter (as Muddy Waters) makes a deal with the devil at the "crossroads," a reference to the legendary bluesman Robert Johnson . though it is actually Season 7