Almost Topless: Singer Katy Perry Suffers "Wardrobe Malfunction" During Charity Concert

Oops! Guess that's what happens when you wear a dress that's two sizes too small. According to reports, British pop star Katy Perry (I Kissed a Girl) was performing at an AIDS charity concert in Toronto when her halter top strap gave way and the audience got more of a view than they bargained for. Perry quickly recovered and kept on singing. Guess the "show must go on" even if the "top must come off!"
Here's more from the Daily Mail - link contains several slightly Not Safe For Work pictures:

Pop newcomer Katy Perry was left red-faced at a charity concert in Canada, when her tight-fitting dress broke on stage. The I Kissed A Girl singer suffered a 'wardrobe malfunction' and revealed rather too much to the audience when her breasts slipped out of her figure-hugging gown. Perry, 24, was performing at the Fashion Cares fundraiser for AIDS charities in Toronto on Saturday when the fashion mishap occurred.
After throwing herself to the ground during an energetic performance of her new single Hot N' Cold, Perry soon found her assets struggling for release.
As she knelt one stage beside her guitarist, her halterneck strap pinged off one side of her satin dress, causing it to slip down and reveal her nipples.
Those in the audience were also give a glimpse of the gusset of her white opaque tights. After realising her overexposure, an embarrassed Perry rushed off stage to fix her dress before returning and carrying on the performance like any consummate professional.