Hedi Slimane looked to the '70s for inspiration for his Spring/Summer 13 Saint Laurent collection.Hedi Slimane made his eagerly-anticipated debut for Saint Laurent at Paris Fashion Week last night.The designer took over at the iconic fashion house earlier this month, opting to change its name from Yves Saint Laurent almost immediately.The label's Spring/Summer show has been one of the most spoken about during the Fashion Week season, with stars and major designers such as Alber Elbaz, Marc Jacobs, Riccardo Tisci and Dame Vivienne Westwood flocking to see it.Hedi presented his take on the '70s, which appeared heavily inspired by Los Angeles.The first model strutted the catwalk in super-slim black trousers, paired with a white frilly shirt, biker jacket and a big fedora. From them on, the designer seemed to stick to what he knew.Various takes on the same look were presented. Sometimes the shirt was black, sometimes white, occasionally it boasted lace sleeves and sometimes the pants were made of leather. However, the aesthetic itself didn't really change.Things were ramped up a notch when it came to dresses, which often fell to the floor and were covered by a chiffon overlay. They were not smart enough to be considered eveningwear, with most coming in black and featuring tight belts around the waist.Some colour appeared in bright red and teal gowns, which were loose-fitting and again teamed with fedoras.Accessories came in the shape of envelope clutches and gold tasselled necklaces, again adding to the '70s vibe.Chloé also showed yesterday and kept things simple, opting for a colour palette of muted blush and blue tones, with the occasional splash of black added in. Sportswear was the big look, with models wearing loose-fitting tops over shorts and simple knee-length A-line skirts. Boxy crop-tops added to the relaxed feel, as did loose trousers which were cropped and boasted big pockets.Paris Fashion Week continues today with shows by Chanel, Valentino and Alexander McQueen.