[tellyblues]

Although Stars in their Eyes got through 50-60 acts a year, though presumably weren't too worried about repeats other than perhaps the finalists.

And they almost always got contestants to perform different songs by the artists. Starstruck's format wouldn't lend itself well to repeats because the need for three people to sound like someone, the judges feedback which would end up going over the same old ground and the time it takes to go through one act in an episode. On SITE, it would take 5 minutes which isn't so bad but on Starstruck it can be 15 mins.