Liza Minnelli in Rehab, Eager to Go Back to Work

Singer and actress Liza Minnelli admitted to rehab for substance abuse

Entertainer Liza Minnelli checked into a treatment facility for substance abuse last week, but she's reportedly hoping it won't be a long stay.

"Liza is doing very well in rehab and coming along fine," a source close to Minnelli told People. "So eager to get out and go back to work, she is busy arranging her next projects."

Minnelli's spokesman Scott Gorenstein shared a similarly positive sentiment.

"Considering she's doing so well, we expect that she'll be released shortly," he told People.

This isn't the "Cabaret" star's first experience with addiction. She was treated for alcohol and prescription drug dependency back in 1984, and mother Judy Garland died from overdosing on sleeping pills in 1969. Court papers from 2002 also suggest that abusing alcohol was one of the reasons Minnelli's fourth husband David Gest then sought a divorce.

"She's living her mother's career all over again," a lifelong friend told People, "being the biggest star in show business, peaking out in films, their weird marriages, the pills, the booze."

The good news is that Minnelli has been proactive in her search for answers.

"It's no secret she has dealt with this for years," Gorenstein told People. "And when she felt the need to seek help again, she did."

The 69-year-old reportedly has a number of upcoming projects in the works, including a concert series later in 2015. That may explain in part why she's so eager to be treated and return to work.

"Liza is a survivor," her friend added. "She is a champ. She has struggled with addiction and gone through [experiences] that would kill an elephant. She is incredibly brave."

About 17 million adults in the United States were battling some form of alcohol use disorder in 2012, and around 1.4 million received treatment, according to the National Institute on Alcohol Abuse and Alcoholism.