Supreme Court Justice Ruth Bader Ginsburg on Monday made her first public appearance since having surgery to remove cancerous nodules from her lung, attending a production celebrating her life.

Ginsburg attended a showing of “Notorious RBG in Song” at the National Museum of Women in the Arts in Washington, according to The Washington Post. The program, which is composed and performed by Ginsburg’s daughter-in-law, Patrice Michaels, offers a portrait of the 85-year-old justice in several songs.

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The Post noted that that production is presented for high school students by the National Constitution Center.

"Thrilled that Justice Ginsburg attended the first concert performance of #NotoriousRBG in Song," Jeffrey Rosen, president and CEO of the National Constitution Center, tweeted. "She, Patrice Michaels, and the performance were magnificent!"

Thrilled that Justice Ginsburg attended the first concert performance of #NotoriousRBG in Song. She, Patrice Michaels, and the performance were magnificent! https://t.co/Gxrjqxy1sY — Jeffrey Rosen (@RosenJeffrey) February 4, 2019

Ginsburg's appearance at the museum marked a significant moment in her recovery. Ginsburg hadn't made a public appearance since having surgery on Dec. 21.

Her surgery occurred after the oldest Supreme Court justice fractured three ribs in a fall in her office. The nodules were discovered during tests to treat her broken ribs. Doctors have said there is no evidence that the disease is still there.

But the surgery, which typically requires six to eight weeks of recovery, caused Ginsburg to miss oral arguments several times for the first time since becoming a justice in 1993.

Her absence has raised concerns about her condition among her supporters. A report that the White House is preparing for her eventual departure or death led to increasing worries in January.

But Ginsburg has continued to work from home as she recovers. The Post reported that she has participated in deciding which cases the court accepts and rejects and that she will vote on cases based on briefs and transcripts.

The Post also reported that it is unlikely Ginsburg will attend President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE's State of the Union address on Tuesday.