As there are new rules this year, and a total of 2 minutes of rehearsals may be used in any one day why not check out some of the artists who performed on the promo tour in these playlists
https://www.youtube.com/playlist?list=PLUj9YGQtlfgEA22EzF6FFlNjgD9j-t6Ms
https://www.youtube.com/playlist?list=PLUj9YGQtlfgEn_KkWP9PSUvxVIVvyyHeJ
https://www.youtube.com/playlist?list=PLUj9YGQtlfgFAl-QRKv4DyDSy0bcOCNwF
https://www.youtube.com/playlist?list=PLUj9YGQtlfgEz-scSzDbwq6dEXnoe2VUr
https://www.youtube.com/playlist?list=PLUj9YGQtlfgGgRHOmkmxzhLn90iXjV_Zx
https://www.youtube.com/playlist?list=PLUj9YGQtlfgGPDkn5wiljsh3ea2RyN51L