Rod Stewart replaced Tom Jones at the Queen's Platinum Jubilee concert earlier this year after a massive behind the scenes bust up between the 'Sexbomb' hitmaker and Dame Shirley Bassey.
Sir Tom, 82, says everything fell through after Dame Shirley refused to do a duet with him, because she wanted her own sparkling slot on stage.
Everything is reported to have been up in the air, leaving a lot of uncertainty as to how things would work, so Sir Rod stepped up and offered his assistance, reports the Mirror.
