The 2006 film, Superman Returns, was a nostalgia tribute to Richard Donner and Christopher Reeve's versions of Superman, as well as Superman's big return to the big screen. Since the film was built around Superman coming back to Earth, I think that the perfect song to have in the film is John Sebastian's Welcome Back Kotter song.

Instead of welcoming back Kotter, here's a welcome back for Superman:

Welcome back, Krypton was your ticket out
Welcome back to that same old Metropolis that u laughed about
Well the names of the citizens have all changed since u hung around, but those memories of u have remained and they've turned around
Who'd have thought they'd lead ya back here where the Daily Planet needs ya
Yeah, we tease u a lot, because we got u back on the spot, welcome back, welcome back, welcome back
We could always spot a hero, welcome back
And what a smile I make knowing that you've come back again
And I know what a big airplane u were saving people in
Was there someone who made u come back again
Yeah, Lex Luthor teases u a lot, but we're all glad that we've got u back on the spot
Welcome back, Superman, welcome back, welcome back
And I know how what a planet u were learning in
Did Lois Lane make u come back again
u help us learn truth and justice from one to ten
u help inspire all the children, women and men
Welcome back, welcome back, welcome back