He certainly does look alert.

Steve Martin just posted this picture to his Facebook page, blowing up Martin Short's spot in the dressing rooms backstage at for SNL's epic 40th anniversary show.

Clearly, the joke he's making is that he's drinking a can of Coke, the soda, not doing lines of cocaine, despite the fact that there is probably four decades of coke residue on every flat surface in SNL's legendary Studio 8H at Rockefeller Center.