Katy Perry Debuts New Bob Haircut. Bobs are one of the hottest hairstyles for 2014, and it looks as if Katy is trying out the look once again. The pop singer showed off her brand new bob haircut while attending the Elle Style Awards last night. In addition to her new bob, she also added bangs to the mix creating quite the alluring new look. Her new hairstyle gave off a very retro vibe which paired perfectly with the retro feeling of her off the shoulder floral print dress. Are you feeling Ms. Katy’s new hairstyle? See her brand new look after the drop.