Even Justin Timberlake can get a little weak in the knees sometimes.

The GRAMMY winner's new concert film, Justin Timberlake + The Tennessee Kids, documents the final stop of the pop star's 20/20 Experience World Tour in Las Vegas. The tour was one of the highest-grossing of the decade, but Timberlake admits to having butterflies about how it might be received.

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"I'm nervous because there's not a character that I can sort of hide behind," Timberlake tells ET's Cameron Mathison.

Fortunately, JT was in the capable hands of Oscar-winning director Jonathan Demme (The Silence of the Lambs), who, after working with Timberlake, quickly became one of the singer's biggest fans.

"What makes my head explode is trying to understand the way this man took all those visual elements and musical elements," Demme says. "How did you do it? How did you dream all that stuff up?"

Timberlake attributes much of the tour's success to the art of delegation.

"You put a bunch of geniuses around you, and then you take all the credit," he says with a laugh.

"To take that tour for two years and still have so much fun... we captured the last two shows and there was still so much good will and love between everybody," Timberlake adds.

While the 35-year-old singer found himself in new territory for the concert movie, he felt it showed how "lucky" he is to have had a music career worthy of such an undertaking.

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"This is unlike any experience I've ever had," Timberlake gushes. "It feels like an embarrassment of riches, really."

Timberlake enjoyed the experience so much that he toyed with the thought of teaming up with Demme again in the future. Demme already has an idea.

"Justin and Jason Segel, I want you two guys to make a movie together with me," Demme says. "Jason, call us. We're going to make a movie together."

Justin Timberlake + The Tennessee Kids, which Timberlake dedicated to late music icon Prince, is available on Netflix now.