What happened to the band ‘Happy Head’? I love their song “Baby USA”

phone lines lie across the atlantic
i guess it's time to fly trans-romantic

are you lonesome Baby usa?
i heard you cry 3,000 miles away
go west young man you said
and i was on my way
don't shoot-i love you baby usa

once upon a time my world
was an open book
the pages turned but i stayed put
now like a pilgrim on
plymouth sound
i'm america bound hand and foot

that's the pull of love's

defection
a continental drift in my direction
a yellow cab from here to eternity
a fifty-floor building points
to all things heavenly
down the roots of high anxiety
there's just another story
from the naked city