Hawaii Five-0 will get a little taste of the Garden State when Frankie Valli drops by for season 5.

Catherine Rollins To Return On 'Hawaii Five-0'? How Will McRollins Story End?

The Jersey Boy will transform into Leonard Campbell, according to Entertainment Weekly, Steve McGarrett's (Alex O'Loughlin) aunt's surprise fiancée. Aunt Deb (Carol Burnett) is currently suffering from leukemia, but the ever-optimistic character won't hesitate to grab life by the horns while she still can.

"She went back to L.A. to get chemotherapy, and in chemo she actually met a man," said executive producer Peter Lenkov, according to TV Guide. "They're going to have this whirlwind romance, and they're coming to Hawaii to get married because they realize both of them don't have much time left."

Oahu Abandoned In 'Hawaii Five-0' Season 5 Premiere, Kono Takes Case To The Waves

Unfortunately for McGarrett, his aunt's new romance will come in the wake of Catherine Rollins departure. Will Aunt Deb and Leonard Campbell's romance work out while the McRollins partnership falls apart? Tell us what you think in the poll below!

Find out more when Hawaii Five-0 returns to CBS on Sept. 26 at 9 p.m. ET. Click the video above to see a preview for the series' latest episode.