There are two I can think of, are there others I am missing?

The Charging Sky by Jenny Lewis & the Watson Twins
... So my mom, she brushes her hair
And my dad starts growing Bob Dylan's beard
And I share with my friends a couple of beers
In the Orlando streets
In the belly of the beast ...

Bob Dylan's 49th Beard by Wilco
... And I'll stop along the way
And it's then I'll think of you
And I'll wonder if you knew
When I got blue

And things got weird
And I started growing
Bob Dylan's beard ...