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Jimmy Fallon's 1-year 'Tonight Show' anniversary: What's your favorite celeb game?

by Chris Serico / / Source: TODAY

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Tuesday will mark one year since Jimmy Fallon took over "The Tonight Show," and along the way, he's had plenty of memorable moments, especially when celebrity guests get in on the act.

Whether they're lip-syncing, performing with kids' musical instruments, doing impressions or just flat-out lying to Fallon's face (for comedic purposes), stars have proven a great late-night appearance doesn't always have to come from a traditional sit-down interview.

So what your favorite of these recurring "Tonight Show" bits? Consider the compelling and hilarious evidence in the following six categories, and then cast your vote in this poll:

Lip Sync Battles:

As movie and TV stars have proven time and time again, you don't need to compete on "The Voice" to pull off an incredible performance in Lip Sync Battle. Just ask Emma Stone ...

... and Joseph Gordon Levitt.

Musical Duets:

It's one thing to impersonate a musician. It's another to do it while in costume and playing guitar. But it reaches next-level status when Fallon does those things and invites guest musicians to join him.

Fallon's Neil Young is impressive on its own, but it's another when the actual Neil Young sits in for a duet.

Of course, when vintage "Bruce Springsteen" performs alongside actual Bruce Springsteen, that's pretty cool, too.

Classroom Instruments:

What is it about classroom instruments that transforms a pop song into something adorably transcendent? The Roots' ability to match Fallon's talent, enthusiasm and charm certainly doesn't hurt.

Robin Thicke's "Blurred Lines" perhaps shouldn't be sung in a kindergarten classroom, but if it were, it might sound like this.

For something a bit more age-appropriate among the elementary-school set, consider the revamped version of Idina Menzel's "Let it Go."

Wheel of Impressions:

Before "Wheel of Impressions," who knew "The Voice's" Adam Levine had a killer Michael Jackson impersonation at his disposal?

And even if Kevin Spacey's more well-known for impersonating celebrities, his Christopher Walken never gets old, especially in the context of Halloween-related poetry.

Box of Lies:

What's in the box? It's not just a question for Brad Pitt's character in "Se7en" anymore.

Here, Jennifer Lawrence revealed all her charm can't help her tell a lie:

While Channing Tatum showed off his best poker face — and proved himself to be a match for Fallon, king of getting the giggles:

The Ragtime Gals:

And what could be better than Kevin Spacey fronting a barbershop quartet?

Well, Steve Carell at the helm is pretty fantastic, too.

Here's to another great year of Jimmy on "Tonight"!

This article was originally published Feb. 16, 2015 at 3:43 p.m. ET.

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