What would the American Music Awards be without the reigning prince and princess of the music industry? Justin Bieber and Selena Gomez walked the red carpet together Nov. 20 at the 2011 American Music Awards — and they put every other couple to shame with their high-class look.

Selena looked gorgeous in a Giorgio Armani pewter satin gown. We’ve never seen her in anything this grown-up before, and it totally suits her. As for Justin with his tux and his side-slicked hair? Very Great Gatsby!