Dwayne "The Rock" Johnson made a special announcement!

He has been hard at work filming Baywatch with Zac Efron, but every so often he updates fans about the goings on behind-the-scenes. He made several casting announcements prior to the start of shooting, but in an unexpected twist Thursday, Johnson revealed one more cast member: Pamela Anderson!

"She introduced the world to 'CJ Parker' and became one of the most iconic characters of a generation - for the most successful TV show of all time," he began his caption. "A pleasure to welcome (as gorgeous as ever) Pamela Anderson to our #BAYWATCH cast. We couldn't have made this movie without you. Welcome home. Thrilled you had a blast with us! #BAYWATCH MAY 19, 2017. #PamAnderson #OS #OriginalSmokestack"

Even though she was obviously one of the stars of the original TV show, Anderson's casting in the new movie might come as a surprise to some because she previously told E! News she didn't even think it would make it to the silver screen. "I'll believe it when I see it, but I wish them the best," Anderson, who played C.J. on the long-running drama, told E! News last fall. "I've heard this for 15 years."