AUSTIN, TX - NOVEMBER 16: Sebastian Vettel (R) of Germany and Infiniti Red Bull Racing and Mark Webber (L) of Australia and Infiniti Red Bull Racing push a cake into the face of their Team Principal Christian Horner as he celebrates his 40th birthday following qualifying for the United States Formula One Grand Prix at Circuit of The Americas on November 16, 2013 in Austin, United States. (Photo by Mark Thompson/Getty Images)
