Ridiculous!

Lady Gaga is known for her crazy and over-the-top choice of wardrobe, but this Muppet dress might just beat it all.

The dress is from Jean-Charles de Castelbajac's fall '09 runway collection, which was an entire collection inspired by "The Muppets" -- complete with Muppet hats and skirts. Love that Miss Piggy!

Lady Gaga isn't the only one wearing weird stuff -- look at these celebs!

Check out these style sinners!