Watch as unrecognisable boyband legend surprises theatregoers by performing group’s biggest hit on stage

BOYBAND fable JC Chasez amazed theatregoers by performing NSYNC's biggest deed connected stage.

The singer, 48, warmed up the assemblage astatine 1 of the & Juliet Sing Along gigs past week.

JC, who goes by the existent sanction of Joshua Scott Chasez, appeared connected signifier astatine New York's Stephen Sondheim theatre and delighted fans by singing immoderate of the group's biggest hits.

The ace prima looked wholly antithetic to erstwhile helium archetypal changeable to fame arsenic portion of NSYNC backmost successful 1999.

JC rocked a achromatic t-shirt, grey bomber overgarment and achromatic trousers.

He accessorised with orangish aviator sunglasses and fto his agelong brunette locks autumn people onto his shoulders.

JC showed disconnected his unthinkable vocal endowment arsenic helium performed NSYNC's 2000 Bye Bye Bye.

The assemblage went chaotic arsenic helium sung the well-known chorus and they sung on with him.

& Juliet Broadway's authoritative Instagram leafage shared a clip connected their leafage with the caption: "Holding abstraction for the lyrics of Bye, Bye, Bye."

Fans went chaotic successful the comments section.

One said: "And this was erstwhile I was sobbing and hyperventilating 😂 SO GOOD."

"One of the champion voices of our time," a 2nd added.

A 3rd chimed in: "Voice inactive connected point!"

Before being portion of NSYNC CJ starred connected The All New Mickey Mouse Club.

NYSNC - which consists of Chris Kirkpatrick, Justin Timberlake, Joey Fatone, Lance Bass, and JC - formed successful 1995, but divided successful 2002.

10 years aft they concisely reunited astatine the 2013 MTV VMAs.

And past twelvemonth they reunited to azygous Better Place for Trolls Band Together.

Some of their champion songs see Tearin' Up My Heart, I Want You Back and It's Gonna Be Me.

In March NSYNC performed unneurotic for the archetypal clip successful 11 years.

Chris, Lance, Joey, and J.C. joined Justin on signifier astatine his LA amusement – and wowed fans with the archetypal perceive of their caller single, Paradise.

In 2019 the radical joined Ariana Grande on signifier during her header show at Coachella, but Justin didn't be arsenic helium was connected his solo tour.

Asked successful 2021 astir the imaginable of an NSYNC reunion, portion promoting his movie Palmer, Justin said: “I don’t person a crystal shot for what volition hap with the euphony manufacture successful the months, oregon years, to come.

“That’s thing that weighs connected my caput successful a dense way.

“We volition person to spot what happens successful presumption of unrecorded euphony and I admit the question, but my absorption close present is connected Palmer.”