In Wang Leehom’s Music-man concert, he changed the image and performance of his band to bring a new audio-visual experience to the audience. Specifically, he achieved this through the following steps:

1. Use stand-ins: Leehom Wang used stand-ins to play drummers, bass players and guitarists in concerts. Their heights and looks were similar to those of Leehom Wang. Leehom Wang himself is very similar.

2. Video synthesis: When the stand-in performs on stage, the large screen at the concert will play the pre-filmed video, creating the illusion that multiple people are on the same stage.

3. Quick costume change: Leehom Wang himself quickly changed costumes backstage and appeared again as the lead singer, performing with three stand-ins.

4. On-site control: In order to make the performance more realistic, the lighting and sound at the concert were used to further conceal the identity of the stand-in. For example, when the drummer Xiao Li left the stage, the lights dimmed, and then a simple Drum beat, at this time the substitute can take the opportunity to come on stage.

In general, this way of changing the band brings a new audio-visual experience to the audience, and also demonstrates Wang Leehom's creative ability and musical talent.