At first I thought that someone had managed to hack MySpace, but on closer observation I realised it was just a smart arse who had changed their profile page to look similar to an error page - but not quite...

When someone's page has been deleted or cancelled on MySpace, the following message displays:

"Invalid Friend ID.
This user has either cancelled their membership, or their account has been deleted. "

I discovered someone who had put of the message on their page as follows:

"Invalid Friend ID.
This user has either cancelled their membership or their account has been deleted.
Or they've moved to facebook.com like everyone else has..."

That's about right too. I never really got into MySpace, but Facebook I use.