Watch out Lisa Vanderpump, another Lisa -- Lisa Rinna -- could be heading to "Real Housewives of Beverly Hills."

According to RadarOnline, Rinna has been approached to join the Season 4 cast of Bravo's "Real Housewives of Beverly Hills." "Lisa already knows people at Bravo and they really like her. She’s funny but she’s got a great sense of humor so she can send zingers," a source told the gossip site.

In 2011, Rinna revealed she was close to joining the show's cast for Season 1. "We were in discussions originally," Rinna said. "I was up for it, and at the time I did my show instead of 'Beverly Hills.' It was part of the process, but then my show came along so I ended up doing our show." The show Rinna referred to was "Harry Loves Lisa" on TV Land.

In February 2013, Rinna and Bravo's Andy Cohen discussed the possibility of her joining the cast. "I don’t know what it would be like once you get in that rat’s nest of it all," she said.

"Real Housewives of Beverly Hills" is reportedly going to shake up its cast for the fourth season. Adrienne Maloof has already left the series and reports indicate Taylor Armstrong and Camille Grammer will also bid the series goodbye. Faye Resnick is also reportedly done with the series. RadarOnline previously reported Baroness Monica Von Neumann is also in talks to join the cast.

Bravo has yet to officially announce any new cast members.

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  • "Real Housewives of Beverly Hills" Season 4 Cast

    "Real Housewives of Beverly Hills" Season 4

  • Yolanda

    "Real Housewives of Beverly Hills" Season 4

  • Lisa

    "Real Housewives of Beverly Hills" Season 4

  • Kim

    "Real Housewives of Beverly Hills" Season 4

  • Joyce

    "Real Housewives of Beverly Hills" Season 4

  • Kyle

    "Real Housewives of Beverly Hills" Season 4

  • Brandi

    "Real Housewives of Beverly Hills" Season 4

  • Carlton

    "Real Housewives of Beverly Hills" Season 4

  • Yolanda

    "Real Housewives of Beverly Hills" Season 4

  • Lisa

    "Real Housewives of Beverly Hills" Season 4

  • Kyle

    "Real Housewives of Beverly Hills" Season 4

  • Joyce

    "Real Housewives of Beverly Hills" Season 4

  • Kim

    "Real Housewives of Beverly Hills" Season 4

  • Carlton

    "Real Housewives of Beverly Hills" Season 4

  • Brandi

    "Real Housewives of Beverly Hills" Season 4

  • Real Housewives of Beverly Hills

    Yolanda

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    Camille

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    Camille

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    Taylor

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    Taylor

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    Kyle

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    Kyle

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    Kim

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    Kim

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    Adrienne

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    Adrienne

  • Real Housewives of Beverly Hills

    Taylor Armstrong, Kim Richards, Lisa Vanderpump, Adrienne Maloof, Brandi Glanville, Yolanda Hadid, Kyle Richards

  • Real Housewives of Beverly Hills

    Taylor Armstrong, Kim Richards, Lisa Vanderpump, Adrienne Maloof, Brandi Glanville, Yolanda Hadid, Kyle Richards

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    Marisa

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    Brandi

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    Brandi

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    Lisa

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    Yolanda

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    Lisa