The Hunger Games hunk was said to have been hooking up and sending sexually explicit text messages to the actress behind his pop star partner's back - but a spokesperson insists the rumours are false.
Hemsworth's spokesperson tells PerezHilton.com, "The story of Liam Hemsworth and January Jones is entirely fabricated by Us Weekly. There is no truth whatsoever to this tabloid fiction."
Hemsworth became engaged to Cyrus last year (12) but speculation about the state of their relationship went into overdrive in February (13) when he was photographed in a car with Jones.
Jessie Usher, the lead in Starz's series Survivor's Remorse, has been cast in the Independence Day sequel. He joins Liam Hemsworth, who's also been cast...