U2 and Led Zeppelin

On So Cruel there's a line "we're trampled underfoot"
and it's directly from Zep (from Trampled Underfoot)
Anyway I'd like to see more connections between these two bands,
since they're both my favourites.

A while back on a Led Zep mailinglist someone said that
U2 should cover That's The Way. (On the third album, beautiful!!)
I agree and I can nearly hear Bono singing..

 And yesterday I saw you standing by the river
 And weren't those tears that filled your eyes
 And all the fish that lay in dirty water dying
 Had they got you hypnotized

I remember too reading they did a bit of Stairway to Heaven
during the first PopMart legs.. In the acoustic set (or
when it became really acoustic) after SATS.
Does anyone remember exactly where and is there a recording
and what did it sound like???

              ROKISTA TULLOO RUUHKOO * www.jmp.fi/~alammen/
                                                        * ****@jmp.fi