I’m going to say it’s Imogen Heap. Her singing is unique, and I like a lot of the electronic music that accompanies her singing in her songs. If you only listen to one of the below songs, check out Minds Without Fear.
Michael Jackson is still the king of pop. You can hear how artists like Justin Timberlake (also a great singer) are trying to imitate his style.
If you want something more creative then maybe Björk.
Michael Jackson is definitely a good choice. I could never get into Bjork. Of her songs I’ve listened to, they didn’t interest me a whole lot, but she sings well. She sings similar to Ilaria Graziano.
i like both imogen heap and mj