Steven Tyler might wanna get comfortable sitting on the toilet -- cause he's getting a year's worth of Mexican food ... for free!
The 65-year old Aerosmith front man was cruising into LAX when he dropped the noticias -- Chipotle hooked him up ... even issued him his own fancy, personalized card.
Our Chipotle sources say he's only allowed one taco or burrito a day though ... so no family outings.
Check the clip ... Steven serves up his choice of meat ... and how much time he has left on the burrito black card.
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