Can you imagine the Rock 'n Roll hi-jinx you'd have on a plane with Steven Tyler? Just picture backstage at one of Aerosmith's shows, right?  Booze and girls and expletive-laced conversations?

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So what happens when a little girl's mother approaches Steven Tyler on a Southwest Airlines flight, and asks him to sing Happy Birthday?

Yup, he's still got plenty of rock star attitude.  But he sure made that little girl's day...I mean week...I mean life...