Bride-to-be Kaley Cuoco was clearly getting into the spirit of things during a recent girls weekend in Palm Springs, California.

The Big Bang Theory star enjoyed what appears to be a bachelorette party with pals including her former 8 Simple Rules… co-star Amy Davidson, Mean Girls actress Lacey Chabert and her sister Brianna Cuoco.

Her friends shared several snaps from the trip away, including one showing 27-year-old Kaley wearing a fluffy tiara and a top emblazoned with the word 'Bride'.

The actress' sister Briana, who has been [uuid=71c5e6af-939f-49c6-a93f-d1e699111ebf]competing on the latest season of The Voice USA[/uuid], posted a montage of snaps to her Instagram account alongside the caption: "Best gals wknd everrrrrr."

Kaley announced her surprise engagement to tennis player Ryan Sweeting in September after just three months of dating.

The blonde beauty [uuid=2cd1f67b-7f62-48e7-9187-04cd0e3f3828]recently told People magazine[/uuid] of the couple's wedding preparations: "We've been planning, so hopefully early next year."

She continued: "We don't have an exact date, but I want to marry him tomorrow so I want to go as fast as possible."