‘Dancing with the Stars’: Valerie Harper, Leah Remini and Snooki Among Season 17 Cast

The rumors proved true: Actress Valerie Harper, ex-Scientologist Leah Remini and Jersey Shore alum Nicole “Snooki” Polizzi are among the 12 celebrities who will be hitting the ballroom floor for the upcoming season 17 of ABC’s Dancing with the Stars.

Harper, 74, decided to join the competition despite still battling terminal brain cancer. “When they asked, I thought, ‘Why would I say no?'” Harper tells PEOPLE. “When life asks you to dance, you just have to dance.”

Also vying for praise from judges Carrie Ann Inaba, Len Goodman and Bruno Tonioli to win the coveted mirror-ball trophy: Former NFL star Keyshawn Johnson, Pretty Little Liars star Brant Daugherty, multi-hyphenate performer Christina Milian, Bill Nye the Science Guy, Saved by the Bell star Elizabeth Berkley, High School Musical’s Corbin Bleu, Glee star Amber Riley, comedian Bill Engvall and Jack Osbourne.

Dancing with the Stars returns on Monday, Sept. 16, at 8 p.m. ET.

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