Diana Vickers Wardrobe Malfunction [PHOTOS]: 'Cinderella' Singer Flashes Underwear at Leeds' Party In The Park, 'X-Factor' Beauty Flaunts Sexy T-Shirt, Granny Panties, NO Pants

British "X-Factor" beauty Diana Vickers looked like she was ready to hit the sack while performing at Leeds' Party in the Park on Sunday, July 28. The 21-year-old "Cinderella" songstress hit the stage flaunting nothing but a long t-shirt... that's right, NO pants! Well, at least she was wearing underwear, so the infamous wardrobe malfunction wasn't TOO embarrassing. Still, Vickers managed to flash the crowd a good chunk of her granny panties! So how did she still manage to look oh-so-sexy? Check out the performance photos below.

Vickers' petite frame and long legs are completely enviable - even in this odd concert get-up (can this look even be considered a legit ensemble?):

Check out more photos of Vickers' onstage fashion "oops" here.

Obviously this wardrobe malfunction wasn't a mistake... maybe Vickers wanted to turn some heads in a rather shocking (pantless) way?

Apparently it was a bit too windy in Leeds over the weekend... it only took a little gust to lift Vickers' retro shirt and expose her white-checkered undies.

Still, she managed to pull off the look pretty well - letting her blonde locks flow and natural beauty shine.

Vickers was a Britain's "X-Factor" semi-finalist in 2008 (the season won by Alexandra Burke). She is currently promoting her follow-up album to "Songs from the Tainted Cherry Tree." The new record, "Music to Make Boys Cry," is currently scheduled for a September release. Vickers recently told DRAFTED magazine:

"Music is my baby. It's so nice to get back into the swing of it all. I had a bit of a break, but the second time round feels so much better. I'm in a much better headspace now and I love this album 10 times more than my first one... After my first album I had a bit of an identity crisis. I wasn't really sure what kind of artist I was. The album did really well but it felt very young. I really wanted to go away and find myself and rediscover a few things."

Was Vickers' slight undies flash just a publicity stunt, or does the t-shirt look simply personify Vickers' laidback style?