GaGa Brings Back The Hair Bow - And It's Supersized!

Lady GaGa performed at the launch of Vevo, the new music video website owned by Google and several major music labels.

Rihanna and Taylor Swift were seen catching up together as well as John Mayer and Justin Timberlake, who was sporting some unique eyewear.

Looks like it was quite the star-studded event!

[Image via Getty Images.]