Adam Clayton sang in the song `` Endless Deep '' .
We thought this guy must be a musician , he knows what he 's talking about and then one day we discovered he was n't playing the right notes , that 's what 's wrong , y'know ? `` Clayton has sung on several occasion , including on the song `` Highway '' , the B-side to the single `` Two Hearts Beat As One '' from 1983 .
Adam Clayton