Lily Allen suffered a pretty embarrassing wardrobe malfunction during her London concert last night, April 28 -- but you know what they say: the show must go on. 

The 'Sheezus' singer was performing at Shepherds Bush Empire Theatre when one of her ornate costumes -- a pink feather boa-like top -- accidentally moved a little too far to the side, exposing her nipple. Allen, ever the professional, tried to cover up the mishap with her hand (and let's be real: her rainbow-painted nails are enough to distract anyone from a little wardrobe malfunction) and just kept right on singing. Atta girl!

While the "oops!" moment is fairly embarrassing, you have to remember that the singer is extremely confident and comfortable with herself. After all, as she sings on the title track of her upcoming album, "Give me that crown, b--- / I wanna be Sheezus."

Not to mention that this isn't the first time that Lily Allen has showed her nipple. In fact, Allen has a tiny third nipple that she flaunted during an on-camera interview, lifting up her shirt to proudly show the world her extra body part. If that doesn't scream confidence, we don't know what does.

That being said, this little incident is slightly more embarrassing, especially since it was unplanned and had the singer attempting to cover it up. More power to her for continuing that performance, though!

See the photo of Lily Allen's wardrobe malfunction below:

Pacific Coast News