Graham is joined by the one and only Arnold Schwarzenegger tonight, so get practicing your best impressions of this unstoppable Hollywood force. Arnie will be chatting about his upcoming Terminator Genisys flick and will also be joined by his co-star Emilia Clarke, who is of course Game of Thrones' Daenarys. On top of that, the gorgeous Jake Gyllenhaal and model Cara Delevingne will be in for the chats, while Tinie Tempah performs his latest song, Not Letting Go.