They were here for the Global Citizen Festival, which was conducted on Saturday evening.
The 34-year-old actress shared a video on her Instagram account, in which Jackman and Furness are looking into the camera and nodding to the music playing in the backstage during rehearsals. Priyanka too is seen joining the duo in the selfie video.
"Backstage madness, Hugh Jackman, Deborra lee," she captioned the video.
Jackman, 47, also expressed his excitement for the festival on his Twitter account.
"Always an awesome festival! Five years and counting. Hughcevans and the entire team. Global Citizen festival, thank you. You are the best," he posted.
The festival took place at Central Park here. It saw performances by R&B singer Rihanna, rapper Kendrick Lamar, electronic band Major Lazer and Metallica.
Coldplay singer Chris Martin, Pearl Jam's lead vocalist Eddie Vedder, DJ Usher and singer Ellie Goulding also attended the concert as special guest appearances.
Martin and Priyanka shared the stage to talk about his band's upcoming maiden concert in India as part of the Global Citizen Festival, which is debuting in India in November.