Miley Cyrus was completely unaware that her sister Noah Cyrus and “Prison Break” actor Dominic Purcell had allegedly dated before he married her mom, Tish Cyrus, a new report by People claims.

Tish Cyrus Says She Went to Therapy with Husband Dominic Purcell 'Two Weeks In' to Dating: 'It Was So Cool' Dominic Purcell and Wentworth Miller Reuniting for New Series 19 Years After Prison ...

The mother-daughter duo were discussing the merits of American men vs. Australian men on the latest episode of their podcast.