Last night on Conan, Nas brought his throwback depth (and a red pleather? plastic? sweater) to his and Anthony Hamilton's performance of "World's an Addiction" off the Life Is Good album. "Life, savage ain't it. Some need Xanax just to maintain it." Oh, preach on! Plus: Blake Shelton's jaw dropped at Chelsea's Xtina-styled makeover (her sidekick Chuy dressed as Cee Lo Green, parrot, inclusive); and Craig Ferguson cracked a presumably nasty-tasting coconut onto Oxfam ambassador Kristin Davis. Watch our compilation to see what you missed.