Mel C and Mel B seem to have no problem telling each other what the really, really want. The Spice Girl musical, Viva Forever has been in the works, but sources are now saying that some of the ladies keep butting heads, and are delaying show writer Jennifer Saunders.

The gal group consists of Victoria Beckham, Geri Halliwell, Emma Bunton, Melanie Brown and Melanie Chisholm. Word on the street is that Mel B and Mel C seem to be having a Who do you think you are spat. The two can't agree on anything, says the insider. It is driving Jennifer crazy.

Hopefully the 2 become 1 on the issues at hand or we might have to say goodbye to the Viva Forever musical.

The play is inspired by the Spice Girl's hit songs and is supposed to hit London's West End by the end of 2012. We were planning to open around summer time but it's likely to be a Christmas show now, Chisholm told the Daily Star Sunday. We've put it back to make sure it's right.

Never give up on the good times ladies.