What In the Name of the Lord.....?

Confession time: I like Miley Cyrus. I do! She's just a sweet little kid from Nashville making relatively solid pop music. Southern charm and a good beat- what's not to like??

However, I was unaware until yesterday that she is actually a Chola princess from East L.A. Man, she fooled me! I mean, seriously, what in the name of the Lord is this outfit/performance? Someone please help me decipher.