Did Liam Hemsworth cheat on Miley? Thu-28-Feb-13 07:29 Share this By Jay-Jay FeeneyDid Liam Hemsworth cheat on Miley Cyrus??They got engaged in June but supposedly Liam got hot and heavy with Mad Men star January Jones at a pre-Oscar party over the weekend.They cozied up at the party and kissed!! You May Also Like Miley Cyrus has heart condition Miley Cyrus hospitalised and cancels concert Miley Cyrus films two girls in a fist fight at her concert! Become a fan of The Edge on Facebook and on Twitter .