Well, well, here's news that warms our hearts.
The likes of Kate Moss and Sienna Miller being as snug as bugs in the friendship dept.
Now, call us crazy, but gossip has always tended to reports saying these two ladies are not the best of chums.
However, our new snaps of them defo suggest otherwise.
Along with stars like Kelly Osbourne, Lily Allen and Peaches Geldof, the ladies donated frocks at the call of their celebrity hairdresser pal, James Brown.
The dresses were part of the James Brown London Collection auction in support of Make Today Count for Cancer Research UK.
So, just how pally are Kate and Si these days?
Have they put their rivalry behind them?
Decide for yourself in our gallery Kate Moss and Sienna Miller at the Cancer Research Charity Auction.
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