This is huge! Two unexpected guests stopped by The Tonight Show on Monday, Aug. 3, joining scheduled celebs Meryl Streep and Jerrod Carmichael.

After his planned interviews, Jimmy Fallon tabled his hosting duties to impersonate none other than Donald Trump, spoofing the GOP hopeful in a skit with comedian Dion Flynn, who took on the role of President Barack Obama

The faux POTUS opens the clip, typing a number into his cell phone and making a call. The screen splits to reveal Trump (Fallon) on the other end, picking up his own phone.

Sporting The Donald's trademark voluminous blond locks and wearing an American flag pin on his suit, the Saturday Night Live alum answers, saying in Trump's famed intonation, "Congratulations, you have reached Donald Trump!" 

Obama responds, laughing, "Oh, Gawker was right! This really is your number! Payback is a bitch." Earlier this week, Gawker published Trump's personal cell phone number, coming at the GOP presidential hopeful after he publicized the number of party competitor Sen. Lindsey Graham last month.

The stand-in Obama and Trump go on to spar, discussing the upcoming Republican debate, Hillary Clinton, and the businessman's dubious qualifications. At one point during the chat, Obama tells Trump he wants him to win the 2016 election "because it would be hilarious," adding, "I've been President for eight years, I'm ready for some entertainment. I just want to grab some popcorn, sit back, and watch this whole s--tshow go down." 

Catch Fallon-as-Trump's response and watch the two do an auto-tune performance of OMI's "Cheerleader" in the video above! 

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