Despite being constantly shaken by rumours that their relationship is on the rocks, the couple looked happy together at the DGA Theater in Los Angeles on Thursday evening (8 August), proving their doubters wrong.
They rarely attend public events together – the last times they walked a red carpet as a pair was the Australians in Film 8th Annual Breakthrough Awards back in June 2012.
Miley wore an unusual Proenza Schouler dress and white Celine shoes, and looked proud to be on her man's arm. At one stage she was pictured gazing at Liam as he posed for the photographers.
Miley and Liam met on the set of romantic drama The Last Song back in 2009. After three years of dating, Liam popped the question with a 3.5-carat diamond ring from Neil Lane on 31 May 2012.
Since then, the couple have faced plenty of speculation over the state of their romance. Rumours of a break-up swirled earlier this year but in May it was claimed by People magazine the pair had simply decided not to rush a wedding and were happy just living together for now.
Miley has had a busy schedule lately completing new album BANGERZ and promoting hit single 'We Can't Stop'.
Liam, meanwhile, has been on the promo trail for Paranoia, a corporate espionage thriller co-starring Gary Oldman and Harrison Ford.
Watch a trailer for Paranoia below: