California girls got it on lock, and Katy Perry is living proof of that. The 34-year-old singer is known for flaunting her incredible figure in her colourful music videos and on the red carpet, but she really turns up the heat during her tropical getaways and poolside outings. Whether she's slipping into a cute two-piece bikini or wearing a form-fitting one-piece during holiday, she always look "fine, fresh, and fierce" in a swimsuit. Need any more convincing? Keep reading to see some of her hottest bikini moments, but be warned: they just might melt your ice lolly.