The standard drill is: Send her out. Couple of spoken ad libs. Let her wobble through the first line - ooh, sounds a bit dodge - she's definitely singing live though isn't she? Cheryl performs the classic 'touch your earpiece manoeuvre' - lawks - her earpiece isn't quite in! Can she pull it off?! Then switch this on (http://www.antarestech.com/products/detail.php?product=Auto-Tune_Live_2) first a little bit, then more as she goes on. There's a bit in the middle where there's an instrumental break. Switch the plug off. Cheryl shouts 'woo, yeah, c'mob everyone, clap your hands like morons!' Then on it goes again for the rest of the song. The last note is so heavily processed it sounds like a tuning fork. She's done it! End of song: switch off, Chezza says 'thanks, you've been great'.