The opening scene takes place in the Oval Office, where a gold-plated frame of President (Shaggy) Trump has been discreetly placed on a side table. That kind of blink-and-you-miss-it detail indicates some laudable attention to set design.

Trump likes Twitter for his go-to response to all things Trump-related. Notable for its brevity, Trump has often simply written "No Collusion!" or complained about a "Witch Hunt!"

Shaggy does too, answering Mueller's knock by shouting "No Collusion!" and "You're the puppet!" The latter is a direct line from Trump to Hillary Clinton during one of their presidential debates.

FBI agents nailing their choreography in the background is probably the best element of the entire spoof. It's gonna be hard to ever look at the FBI the same after this.

In a bonus allusion to Trump's Twitter feud with North Korean leader Kim Jong Un — wherein Trump tweeted about his "Nuclear Button" being "much bigger and more powerful" — the Corden/Shaggy video features just such a prop with the delightful addition of (yep) gold plating. Corden's Mueller tactfully moves said button out of the POTUS' range.

In Corden and Shaggy's telling, Trump regrets his decision to oust former FBI director James Comey. "I never should have fired James Comey last summer," he sings, while throwing papers at the television screen. It's possible that Trump has put himself in legal jeopardy with statements indicating he fired Comey because of the Russia investigation.

The Russia investigation can feel endlessly perplex at times. Corden's Mueller has two verses that sum up certain aspects of the evidence in a neat little rhyme.

"Manafort committed tax fraud/had shady dealings abroad/so many staffers who could be bought/ how did you think you wouldn't be caught?"

Manafort has pleaded not guilty to tax fraud.

There's no evidence Trump has ever drawn a heart around a picture of Vladimir Putin's face. There is, however, ample evidence that Trump tries very hard not to say anything negative about the Russian president. With limited time and lyrical space, the video producers trusted that a picture could say all they needed it to.

There's a scene where Corden's Mueller wrests a half-eaten donut out of the hand of Shaggy's Trump. Then he puts it in an evidence bag, perfectly encapsulating Mueller's reputation as fastidious about fulfilling his job.

"I'll subpoena you to testify in front of a grand jury/Just know five of your associates have already pled guilty."

Shaggy sings that he'll "Stick to the plan — attack the 'fake news.'" It's a tactic Trump has turned to often, calling dozens of entities and reports "fake news," particularly when a news cycle doesn't favor him.

The most salacious allegations related to the Russian investigation came out of the notorious "Steele dossier." According to Christopher Steele, the former British spy who put the evidence together, Trump was recorded engaging in so-called "golden showers" with multiple hired women while in Russia. Trump has denied these allegations, and recent reporting suggests even the dossier's authors doubted the story's credibility.

However, in Corden's rendition, Mueller has taken possession of the tape. Shaggy's Trump doesn't seem terribly concerned.

The entire "It Wasn't Me" spoof is full of commentary on and about the investigation, with enough details about both Mueller's work and Trump's denials to keep viewers paying close attention.