While the two failed to shower themselves with cash in a manner similar to the former Two and a Half Men star, the Equals co-stars opted not only to pour a bucket of freezing cold water over their heads, but also dunked their faces in the ice bucket for a solid 15 seconds.
"Here's to the fight against ALS. Richard, I love you. Hathaway, get this—this is a f--king real challenge," K.Stew says to challenger Anne Hathaway in her signature expletive-filled fashion before she, Hoult and pal Scott Fahrendorf proceed to immerse themselves in the chilly H2O.
Unfortunately for Stewart, her two male companions had another trick up their sleeves and went on to douse the brunette beauty with a second giant bucket of water.
Seriously, just watching the clip makes us want to take a nice hot shower!
At the end of the video, Stewart assures fans that the trio was eco-friendly while completing the challenge. "In good faith you must believe that all of this was done with dirty bath water. Please be considerate of California water conservation," the actress concludes before flashing a peace sign as Hoult lets out a small chuckle.
The adorable co-stars are the latest famous faces to complete the ice bucket challenge in order to promote awareness and raise money for amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease.
Additional celebs who have doused themselves in cold water in support of the cause include Will Smith (who nominated both Beyoncé and Jay Z), Nick Cannon and Victoria Beckham, joining the likes of Justin Bieber, Selena Gomez, Lady Gaga, Ben Affleck Liam Hemsworth, Hayden Panettiere and many more, all of whom have all taken part in the viral Internet challenge.