NBC has announced a lineup of guest hosts for December for "Saturday Night Live," and one of the guests is a former regular on the show who has gone on to big things on the network. EW.com reports that Jimmy Fallon is set to guest host the special Christmas edition of "SNL" on Dec. 21.

Fallon is now the host of NBC’s "Late Night with Jimmy Fallon," and has been anointed to take over "The Tonight Show" starting Feb. 17, after Jay Leno departs.

Fallon’s "SNL" appearance will reunite him with one of his frequent collaborators, as Justin Timberlake is on board in the musical slot that night.

NBC also announced the return of two stalwarts to guest-hosting roles, with Paul Rudd slated for Dec. 7 and John Goodman lined up for Dec. 14. For Rudd, who stars in "Anchorman 2," it will be his third time as guest host. The musical guest that night will be One Direction.

"Rudd last appeared on ‘SNL’ in 2010, hosting with musical guest Paul McCartney; the British boy band first appeared on ‘SNL’ in 2012. Their next album, ‘Midnight Memories,’ drops Nov. 25," the report notes.

Goodman is one of "SNL’s" most frequent guest hosts, having already hosted the show 12 times — the last time being in 2001. The musical guest for his Dec. 14 show will be Kings of Leon, in the group’s third appearance on "SNL."

The report adds: "Goodman currently stars on ‘Alpha House,’ Amazon’s first scripted series. The Kings’ latest album, ‘Mechanical Bull,’ was released Sept. 24."

As for Fallon, the story notes: "Though he has hosted ‘SNL’ only once before (in 2011), he’s made several cameo appearances since leaving the show in 2004. Timberlake, meanwhile, will make his fifth appearance as musical guest — and his second in 2013 alone. Both he and Fallon have won the Emmy for Outstanding Guest Actor in a Comedy Series for hosting ‘SNL’ in the past."

Jimmy Fallon