She’s called Liza Minnelli — with a “z” — but she might as well be vying for the title of Comeback

On April 19, just a month after her most recent stay in rehab for alcohol dependency, the iconic singer was all smiles as she stepped out for a Sunday night supper at West Hollywood hot spot Pump. “She looked fabulous,” an eyewitness tells ‘Closer.’ “She was in a good mood, and definitely sober!”

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Liza at the Oscars in March 2014.

During the two-hour dinner — she ordered salmon with sparkling water — the ‘Cabaret’ star appeared healthy and relaxed, responding graciously to the multiple well-wishers who approached her table.

Related: Liza Minnelli Asked for Help With Her Alcohol Addiction Before Entering Rehab

Even when a waiter attempted to hand Liza a cocktail menu — causing the 69-year-old’s dining companion to bat it away in a dramatic huff — she took the potentially awkward moment in stride. Says the eyewitness, “She just raised her eyebrows at her friend’s overreaction and laughed.”

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Liza with her ex-husband David in December 2002.

Clearly, Liza has emerged from treatment in a better place — and now that she’s back to her old self, pals reveal she’s setting her sights on a surprising new goal: finding love again!

To read the full story on Liza, pick up the new issue of ‘Closer Weekly,’ on newsstands now!