sunglasses blonde jeans tee shirt paris hilton playhouse

Paris Hilton walked LA Thursday with a bag from one of her own signature stores.

Like her shirt, Paris, who is newly single from Cy Waits, looked happy. Maybe it's because her stores are doing so well ... she has plans to expand them to the U.S. soon!

Even though it was during the day, Paris headed into nightclub Playhouse. Leave it to Paris to start a new trend ... dayclubbing!