By Fehintola Betiku and Nadia Mendoza
Apprehensive: Katy Perry looked somewhat nervous as she prepared to hit the water slide in San Dimas, California... and for good reason
Yesterday as Katy Perry enjoyed a trip to Raging Waters in San Dimas she showed off a little bit too much of her enviable bikini body as she took to a ride in a two-piece.
The singer who is known for her love of amusement parks found herself overexposed when her bottoms slipped down as she went down a water slide.
But true to form, Katy simply laughed the incident off and opted for another go on the ride as fans cheered her on.
Rooting for her: As she readied her second attempt her fans watched on
... but she soon came a cropper as she tumbled off the boogie board
The bikini that got away: The 27-year-old found herself a little overexposed as she came up from the water and she was surrounded by onlookers
With rumoured new love John Mayer absent from festivities, Katy Perry had no one to impress.
As a result, the usually-immaculate popstar was seen with drenched hair dripping all over her face during her eventful day to the Californian waterpark.
However, despite being lax about her make-up free appearance, Katy did showcase an enviable bikini body that no doubt caught singer/songwriter Mayer's beady eye.
Covering up: A man was seen shielding Katy with a white board as she adjusted her bottoms
Exposed: Katy's friend rushed to help her but it was a bit too late to spare her blushes
The I Kissed A Girl songbird appeared to be having a blast as she was seen giggling and waving as she hung out with friends.
The 27-year-old almost had another mishap when she nearly spilled out of her black and white halterneck two-piece, perhaps with the bra top having slipped while she was on a slide.
She showed off a trim figure while looking a little sunburned on her stomach and chest.
High spirits: Katy offered a wave, having previously spent the night partying with rumoured beau John Mayer
Katy is believed to be dating John after a series of sightings with the 34-year-old, including last night.
The pair were seen accompanying one another to a house party in Los Angeles, and then leaving the Los Feliz home together.
Katy's divorce from Russell Brand was made official last month, with the Englishman - who performed at tonight's Olympic closing ceremony - having moved on with new love Isabella Brewster.
Affectionate: A mystery male companion offered a gentle arm for Katy to lean on
Chilling out: The singer looked a little sunburned on her stomach and chest