Apple is now promoting 'Hey Siri' in a new iPhone 6s TV spot starring Da Cookie Monster. The Cookie Monster is a Muppet on the long running children's television show Sesame Street. He is best known for his voracious appetite and his famous eating phrases, such as "Me want cookie!" In Apple's latest commercial, Cookie Monster sets the timer on a new batch of Cookies with the command 'Hey Siri'. The 14:00 minute timer is set – and the countdown drives Cookie Monster Crazy!