[Nick Cannon. Photos by Getty] Wednesday night, an interesting mix of reality tv personalities, scenesters, and, perhaps most oddly, Broadway actors gathered together at club stamping ground Avenue for the launch of Swatch’s new CreArt line, designed by Billy The Artist. Nick Cannon was there, briefly. America’s Next Top Model’s CariDee English and Jaslene Gonzalez attended. So did Adrienne Bailon of, uhm, The Cheetah Girls. Guests were treated to a performance by Rock Of Ages More»