Watch Taylor Swift Rehearse 'I Don't Wanna Live Forever' Acoustically

It seems Taylor Swift may be singing her Fifty Shades Darker hit during her performance at DirectTV’s Super Saturday Night Super Bowl Party in Houston -- gaging from a behind-the-scenes rehearsal video.

AT&T tweeted a video of Swift practicing an acoustic version of her latest collaboration with Zayn, “I Don’t Wanna Live Forever," though he wasn’t present in the clip.

Featuring Swift donning a black turtleneck, the softer, stripped-down version of the track echoes the popstar’s early roots and is easily as captivating as the original.

The party -- the night before the Super Bowl -- is an invitation-only event that has included past performers like Justin Timberlake, Jay-Z and Beyonce, among others.

Listen to Swift’s acoustic rehearsal for “I Don’t Wanna Live Forever” below.