The Oscar winner took lessons, practised for months, and even received some tutoring from rock legend Neil Young to join musician/actor Rick Springfield as part of a band in the comedy.

However, she has no intention of trading Hollywood for concert halls and flatly refused to contemplate hitting the road with Springfield when the cameras stopped rolling, asking: "Why would I?"

Former Catatonia frontwoman Cerys Matthews interviewed Streep for British TV show This Morning, and she told viewers, "I asked her because Rick was about the start a world tour, and I said, 'Are you gonna do it?'... I went, 'Will you go on tour?'. She said, 'No way!'"