The 'MacGruber' star and former cast member is making his hosting debut this weekend.
Although -- as the MacGruber star demonstrates in the new promo for his upcoming episode -- his time in Hollywood has given him a bit of an ego.
Forte was joined by Thompson -- as well as the members of Måneskin, the upcoming musical guest -- on the iconic Studio 8H stage, and the comics shared a special moment (sort of).
"It's so great to see you, man!" Forte tells Thompson. "You know, we used to work together when I was on the show."
"Yeah, no, I know. Good to see you too, man," Thompson shares. "You know, I was worried when you left that you were gonna get all Hollywood and forget about me."
"Me? Hollywood? Are you kidding? Of course I remember you Kreegan!" Forte exclaims. "How can I forget Michael Kreegan, my favorite lighting guy? Wow, they let you do the promos now! That's awesome buddy. Keep it up!
After a long and awkward pause, Forte asks, "So did we get it? Because I'm only gonna do the one take!"
Forte -- who is making his SNL hosting debut this weekend -- joined the sketch comedy series in 2002, and remained on the cast until departing in 2010.
Thompson, meanwhile, joined the cast in 2003, just a year after Forte signed on, and has gone on to set the record for longest-serving cast member with 19 seasons under his belt.
Saturday Night Live airs live coast-to-coast at 11:30 p.m. ET, 8:30 p.m. PT on NBC.