Gerard Butler shows off his chest while wearing an unbuttoned shirt at the 2019 Casamigos Halloween Party on Friday night (October 25) at a private residence in Beverly Hills, Calif.
The 49-year-old actor was surrounded by friends, including Rachel Zalis, while celebrating at the star-studded event.
Ryan Phillippe dressed up as Han Solo at the party and more celebs who were spotted there (and are pictured in this gallery) include Laverne Cox, Paris Hilton, and Kaitlynn Carter.
See the photos of Gerard dressing up as the Mad Hatter for Halloween a couple years ago!