Showtime for ‘Z’

Thesp lives it up at Ziegfeld bash

For Liza Minnelli, life is indeed a cabaret, ol’ chum.

Minnelli celebrated her 60th birthday at Gotham’s Ziegfeld Theater Monday night with a sellout evening showcasing the 1972 Bob Fosse TV concert “Liza With a Z,” followed by a drinks and dancing reception at the Supper Club.

Hosted by Showtime — which preems the newly remastered version April 1 — and Broadway Cares/Equity Fights AIDS, evening was an unfettered celebration of Minnelli’s life and work, with no one enjoying it more than the legendary triple threat herself.

“I’m 60!” she kept gushing, prompting spontaneous (and hearty) renditions of “Happy Birthday” from the throng. “In 1972, I was a young woman, but in 2006, I still feel like I’m at the beginning of my life!”

The updated version of the concert went down a treat with the crowd, whose cheers often seemed even more raucous than the aud in the film. Given the level of support for Minnelli, the show seemed to have lost none of its initial magic.

Neil Meron, who along with Craig Zadan co-exec produced the special, summed it all up to loud applause: “We all know that Liza has been through a lot of bullshit, but what is being restored tonight is pure talent.”