I happened to see a new show on the ITV (a TV channel in the UK), called All Star Musicals. The singers should be singing live since it is a competition and there are judges, and also there is a big band playing at the front of the stage. But I couldn't find any microphone attached/clipped to/on the singers. Can anyone tell me how exactly the sound is collected in this case?
I've just googled again. The microphones should be cleverly hidden somewhere, which is common on theatre stages or in theatrical productions.
The best position is to run the microphone cable up the back of the neck and through the hair, with the end of the microphone just sticking out of the hair line, either in the centre of the forehead or above one of the eyes, again with the microphone head just in front of the hair line.