"O Come All Ye (grateful) Deadheads" joke

O come, all ye Grateful,
Deadheads to the concert.
O come, Grateful Deadheads,
And camp in the street.
Bring rolling papers,
Don't forget your sleeping bags.
O come get us some floor seats,
We've followed them for four weeks,
O come get us some floor seats,
To see the Lord.
O come, all ye hippies,
Throwbacks to the Sixties.
Paint flowers on your van,
And don't wash your feet.
Wear your bell-bottoms,
And your tie-dye t-shirts.
O come let us adore them,
We've quit our day jobs for them,
O come let us adore, them,
Garcia's the Lord.