Pierce Brosnan 'speechless' as he joins Angelina Jolie and Brad Pitt at Lady Gaga show

Speechless! Pierce Brosnan with wife Keeley Shaye-Smith attended the private party for Lady Gaga

Irish star Pierce Brosnan joined Hollywood A-listers Brad Pitt and Angelina Jolie at a private session with Lady Gaga in LA.

Brosnan, with his wife Keeley Shaye Smith, joined 1,000-plus special guests at the special party for the 30th anniversary of the Museum of Contemporary Art in Los Angeles.

Brosnan hailed Lady Gaga’s performance of her new ballad, “Speechless,” which was part of a production masterminded by Italian artist Francesco Vezzoli and also included a performance from Russia's famed Bolshoi Ballet.

The event raised nearly $4 million for MOCA — greatly helped by the sale of GaGa's pink piano, which was designed by Internationally renowned English artist Damien Steven Hirst, one of the the most prominent members of the group known as "Young British Artists" who dominated the art scene in England during the 1990s. He is considered to be the world's richest living artist.

The piano went for $450,000.

After the event, the Hollywood elite - including Gwen Stefani, Gavin Rossdale, Marisa Tomei, Guy Richie - joined Tom Ford and Nicky Hilton for the after party hosted by Prism Gallery, Dasha Zhukova and Pop magazine.