A booming bouffant, a frumpy fairytale frock and a dressed-down disaster -- the stars rocked all the wrong trends at the CMA Awards this week!

Kacey Musgraves caused a Twitter frenzy at the star-studded award show for sporting this huge, super-teased 'do on the red carpet. The singer's neutral beaded Oscar de la Renta gown is gorgeous, but no one noticed because her giant bouffant attracted all the attention.

Right after her photo started circulating online, "#KaceyMusgraves" began trending on the social media site, as did "Spacey Kacey."

Clare Bowen also missed the mark in this Disney-esque gown that featured an excessive embellished bottom half. The "Nashville" star is stunning, but her dress looks like a homemade prom dress.

There’s no "Redneck Woman" like Gretchen Wilson, and that’s one reason we love her. However, her award show ensemble was more suited for a night out in Nashville … not for the red carpet on "Country's Biggest Night."

But, these ladies weren't alone -- click "Launch Gallery" above to see more of this week's worst dressed stars.

To see the celebs who shined at the CMA Awards, check out the photos below!