Billy Joel was absent at the premiere of his documentary at Tribeca Film Festival days after canceling all of his tour dates and revealing his rare brain condition diagnosis.

Directed by Susan Lacy and Jessica Levin, Billy Joel: And So It Goes, which premiered at Tribeca Festival in New York City on Wednesday, June 4, showcases the music icon's journey from his humble Long Island roots to international superstardom through rare, never-before-seen archival footage with candid interviews.

While the "Vienna" musician wasn't at the Beacon Theatre, stars like Whoopi Goldberg, Tom Hanks, Robert De Niro, Mariska Hargitay and her husband, actor Peter Hermann, were present.

Last month, Joel announced the cancellation of all of his upcoming concerts following a recent diagnosis of normal pressure hydrocephalus (NPH), a condition where excess cerebrospinal fluid builds up in the brain ventricles.

According to a statement obtained by PEOPLE that was then posted on his Instagram, his health condition has worsened from his recent performances, leading to problems with hearing, vision, and balance.

Under his doctor's instructions, the "Piano Man" musician is undergoing specific physical therapy and has been "advised to refrain from performing during this recovery period."

According to the statement, Joel is "thankful for the excellent care he is receiving and is fully committed to prioritizing his health." 

"He is grateful for the support from fans during this time and looks forward to the day when he can once again take the stage," it continued.

In a statement, Joel said he was "sincerely sorry to disappoint our audience."

Following the announcement, Joel's wife Alexis, 43, shared an Instagram update on his condition and recovery.

"Thank you for the outpouring of love and support," she wrote alongside a photo of her with Billy and their daughters. "We are so grateful for the wonderful care and swift diagnosis we received."

Added Alexis: "Bill is beloved by so many, and to us, he is a father and husband who is at the center of our world."

"We are hopeful for his recovery," she wrote. "We look forward to seeing you all in the future."

His daughter Alexa Ray Joel also paid tribute to her father with a black-and-white image of artwork portraying a dad holding his young daughter's hand, writing: "We love you and we got you, Pop!"