We have the luxury to see 4 different concerts every night for free, each of the groups normally play at Disneyland/seaworld or over all the attraction centers around the Orlando area. We also have multiple concert houses that bring in the likes of Kansas, Christopher Cross, Pink Floyd tribute bands, etc..
Before this, I attended the big Oracle Openworkd events when I worked and they would hold a concert with multiple acts from Elton John, Aerosmith, seal, Mc and the sunshine band, Billie Joel, journey, and many many more.