They're busy preparing for their comeback tour as a four-piece later this year.

But The Spice Girls have reportedly turned down an '80 million offer to tour America' over fears it may cause 'tension' between the bandmates.

A source told The Sun that Mel B, Geri Horner, Mel C and Emma Bunton could have banked millions from a tour of top US stadiums but decided against that and producing new music together.

They added: 'The UK shows will be massive and very special so they are apprehensive about doing more in the US because they know from experience how long stints together on the road can cause tensions.

'They all have families who they need to consider, they aren't single women who can drop everything and go.

'And in terms of new music as a group, they are all in various stages of relaunching their solo careers, which makes it very unlikely.'

The news comes as earlier Mail Online reported that the group was 'updating' some of their songs so that the reunion tour 'doesn't offend anyone'.