Jeremy Piven and Mike O’Malley (“Glee”) have signed on to Exclusive Films’ Miley Cyrus topliner “So Undercover.”

Storyline follows a P.I. (Cyrus) sent undercover at a college sorority. Piven will play a special agent, while O’Malley is cast as the father of Cyrus’ character.

Film’s thesping ensemble already includes Kelly Osborne, Josh Bowman and Matthew Settle, among others. Tom Vaughan (“What Happens in Vegas”) helms a screenplay by Allan Loeb (“Wall Street 2: Money Never Sleeps”) and Steven Pearl (“The Switch”).

Also fully financing the pic, Exclusive Films produces with Loeb and Pearl, both through their company Scarlet Fire Entertainment, and Tish Cyrus. Jodi Zuckerman-Weiner, of Tish Cyrus’ production company Hope Town Entertainment, and Rob Cowan exec produce.

Next up for Piven are indie drama “I Melt With You,” “Spy Kids 4” and “Drift.”