Adam Lambert joins cast of "Glee"

NEW YORK, NY - JUNE 17: Musician Adam Lambert attends the "World War Z" New York Premiere at Duffy Square in Times Square on June 17, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images)
Jamie McCarthy

"Glee" will have some "Idol" star power when it returns for a fifth season this fall.

"American Idol" alum Adam Lambert has joined the cast of the Fox series.

"Glee" creator Ryan Murphy broke the news on Twitter: "I am thrilled to announce that the super talented Adam Lambert is joining the cast of Glee this fall."

It's unclear what role Lambert will play, though his arrival comes as "Glee" says goodbye to castmembers Heather Morris, Amber Riley, Mark Salling and Harry Shum, Jr.

"Glee" actress Jayma Mays, meanwhile, has signed on for a lead role opposite Will Arnett on CBS' "The Millers."

Lambert competed on the eighth season of Fox's "American Idol," releasing his post-"Idol" debut, "For Your Entertainment," in 2009, featuring the single "Whataya Want From Me." In 2012, Lambert put out his sophomore release, "Trespassing."