"Liza has left New York and all her friends behind after almost 70 years to be with a gay piano player," a source told Radar. "She's moved to L.A. and since she's been gone her friends in New York have seen little of Liza."
The man in question is Michael Feinstein, who is married to his longtime partner, Terrence Flannery. Rob Shuter reported exclusively that Feinstein's marriage "has not stopped Liza from wanting to be with Michael."
See photos of Liza Minnelli:
HOLLYWOOD, CA - FEBRUARY 20: Liza Minnelli attends Los Angeles Italia Closing Night Ceremony at TCL Chinese 6 Theatres on February 20, 2015 in Hollywood, California. (Photo by Venturelli/Getty Images)
NEW YORK, NY - JANUARY 31: Liza Minnelli speaks at the 'Cabaret' 40th Anniversary New York Screening at Ziegfeld Theatre on January 31, 2013 in New York City. (Photo by Roger Kisby/Getty Images)
NEW YORK, NY - JANUARY 31: (L-R) Liza Minelli and Joel Grey attend the 'Cabaret' 40th Anniversary New York Screening at Ziegfeld Theatre on January 31, 2013 in New York City. (Photo by Roger Kisby/Getty Images)
NEW YORK, NY - MAY 04: (L-R) Kelli O'Hara, Liza Minnelli and Steven Pasquale pose backstage at the musical 'The Bridges of Madison County' on Broadway at The Gerald Schoenfeld Theater on May 4, 2014 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - JUNE 13: Alan Cumming recipient of the Award of Courage (L) and Liza Minelli pose backstage during the 4th Annual amfAR Inspiration Gala New York at The Plaza Hotel on June 13, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images)
LONDON, UNITED KINGDOM - JULY 01: Liza Minelli wins the Icon Award at the Nordoff Robbins O2 Silver Clef Awards at London Hilton on July 1, 2011 in London, England. (Photo by Eamonn McCormack/Getty Images)
NEW YORK - OCTOBER 24: Singer Liza Minnelli attends an open rehearsal for 'Liza's at the Palace' on Broadway at the Chelsea Rehearsal Studios on October 24, 2008 in New York City. (Photo by Neilson Barnard/Getty Images)
NEW YORK, NY - MAY 09: Rosie O'Donnell and Liza Minnelli perform at Barclays Center on May 9, 2014 in the Brooklyn borough of New York City. (Photo by Dimitrios Kambouris/Getty Images)
HOLLYWOOD, CA - MARCH 02: Singer Liza Minnelli attends the Oscars held at Hollywood & Highland Center on March 2, 2014 in Hollywood, California. (Photo by Jason Merritt/Getty Images)
HOLLYWOOD, CA - MARCH 02: Actress Liza Minnelli (R) and guest attend the Oscars held at Hollywood & Highland Center on March 2, 2014 in Hollywood, California. (Photo by Jason Merritt/Getty Images)
US actresses Sharon Stone (L) and Liza Minnelli wave as they arrive for the American Foundation for AIDS Research (AMFAR) 'Cinema Against AIDS' benefit dinner in Cannes, 20 May 2004, on the sidelines of the 57th Cannes Film Festival in the French Riviera town. The star-studded event benefits AIDS research through a live auction and impromptu musical performances. AFP PHOTO BORIS HORVAT (Photo credit should read BORIS HORVAT/AFP/GettyImages)
HOLLYWOOD, CA - APRIL 12: Actress Liza Minnelli arrives at the TCM Classic Film Festival opening night premiere of the 40th anniversary restoration of 'Cabaret' at Grauman's Chinese Theatre on April 12, 2012 in Hollywood, California. (Photo by Alberto E. Rodriguez/Getty Images)
NEW YORK, NY - APRIL 10: Liza Minnelli performs onstage at the 9th Annual TV Land Awards at the Javits Center on April 10, 2011 in New York City. (Photo by Larry Busacca/Getty Images)
NEW YORK - APRIL 25: Actress/singer Liza Minnelli attends the Broadway opening night of 'The House of Blue Leaves' at the Walter Kerr Theatre on April 25, 2011 in New York City. (Photo by Henry S. Dziekan III/Getty Images)
NEW YORK, NY - MARCH 27: Singer Liza Minnelli attends the after party for the Broadway opening night of 'How To Succeed In Business Without Really Trying' at The Plaza Hotel on March 27, 2011 in New York City. (Photo by Joe Corrigan/Getty Images)
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The latest development in the 71-year-old's love life has come as a shock to her friends, who are allegedly wondering "what magical powers Michael [has] over the icon."
Her infatuation with Feinstein wouldn't be her first romance with an openly gay man, either. Minnelli's first marriage was to entertainer Peter Allen, whom she was married to from 1967 until they divorced in 1974.
"No, no, of course I didn't," she once told The Advocate when asked if she knew Allen was gay. "People say things, and somebody said, 'I think he's...' And I asked him about it, and he said that yes, there was that, but that he loved me. And I loved him, and we decided to try it, and we got married, and we tried so hard, but then it didn't work. But we stayed close, always, always, and of course I was with him at the end."
Minnelli has been married three other times, as well: She was married to producer Jack Haley, Jr. from 1974-1979, stage manager Mark Gero from 1979-1992 and promoter David Gest from 2002 until 2007 (they separated in 2003).
UPDATE: An earlier version of this article misnamed Michael Feinstein's partner.