How to Stop UIWebView from playing mp3?

I am loading a MP3 file into UIWebView control on an iPad Application, I have a UIButton called done the user expected to dismiss the UIWebView and stop the music, here is a code snippet:

// points to the mp3 file path
NSURL *url = [NSURL fileURLWithPath:self.sFilePath]; 
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[web loadRequest:request];

When the user hit done I do the following:

[self.webview removeFromSuperview];
[self.webview release];

But that does not stop the music from playing, I noticed that loading mp3 files on UIWebView opens the QuickTime player is that correct way?

I am greatly appreciative of any guidance or help.