Keanu Reeves and his girlfriend of four years, Alexandra Grant, were spotted looking completely loved-up as they donned elegant black evening-wear for a night out on the red carpet.The Hollywood couple were all smiles as they held hands and beamed for the cameras at the swanky event. Keanu, whose silky black shoulder-length locks were ever-present, looked happier than ever and a far cry from his brooding action star persona at the LACMA Art + Film Gala Presented By Gucci. Sporting a salt and pepper beard and moustache, the star donned a smart black tuxedo and matched his girlfriend, who had opted for an all-black gown with cut-out detailing for the Los Angeles event.