Justin Hemmes' sister Bettina splashes out a rumoured $7 million on Palm Beach weekender

Justin Hemmes and his model girlfriend Madeline Holtznagel arrive in Sydney via private jet

Justin Long & Girlfriend Kate Bosworth Are All Smiles During Walk Around NYC

Hailey Bieber dons red bikini and Justin goes shirtless as they join 'You are not him' viral trend