Jimmy Fallon, Justin Timberlake Head Back to 'Saturday Night Live'

Paul Rudd, John Goodman, Kings of Leon and One Direction will also appear this December

Jimmy Fallon
Monica Schipper/FilmMagic
Jimmy Fallon
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Jimmy Fallon will return to his old Saturday Night Live stomping grounds to host the December 21st show with Justin Timberlake lined up as musical guest, Variety reports. In preparation for what's sure to be a certified holiday spectacular, Fallon's already reached out to Timberlake on Twitter asking him, "Got any ideas?"

The pair have formed a top notch repartee over the year, one that dates back to their still spectacular turns as Barry and Robin Gibb on SNL's "The Barry Gibb Talk Show" sketch. Timberlake has also been a frequent guest on Late Night with Jimmy Fallon, where the two have performed, and perfected, their "History of Rap" medleys. Timberlake also appeared on the show every day for a full week in the lead up to the release of part one of The 20/20 Experience, and showed up on the show every Tuesday in September before The 20/20 Experience: 2 of 2 dropped.

Watch Jimmy Fallon and Justin Timberlake Sing 'Row Row Row Your Boat' with Michael McDonald

This will also mark Timberlake's second appearance on Saturday Night Live this year after he did double duty as both host and musical guest back in March. He actually scored an Emmy for Outstanding Guest Actor in a Comedy Series when he hosted in 2011, and was nominated in the same category for his work earlier this year, losing to Bob Newhart for his guest spot on The Big Bang Theory.

Filling out the rest of SNL's 2013 schedule are Paul Rudd and One Direction on December 7th and John Goodman – making his 13th appearance as host – and Kings of Leon on December 14th. This week, The Hunger Games: Catching Fire's Josh Hutcherson will host with musical guest Haim.