My fave artist of all time, because she is a true artist in every meaning of the word is Madonna. I think she is a goddess, I've loved her since I was a kid, she's given me so much confidence in myself, her music is fantastic and so is her voice - I hate it when people say she can't sing, thats utter rubbish, she has such a beautiful voice, just because she doesn't warble every note like say Whitney Housten (who I also used to like her older stuff). Madonna is just the cream of the crop, she's a living legend.
I also really love ABBA, I don't think they get the credit they deserve - Agnetha singing The Winner Takes it all is my fave song of all time, it's so emotional and beautiful. Plus, they had so many amazing and melodic songs which they all wrote themselves (as Madonna does).
I really Like Christina Aguilera (loved the 'Dirrty' phase - I actually had my hair with the black extentions in and bleached white when I went to see her live - her voice is stunning!
Love Britney too, she's so great... BTW, I also like BSB, I saw them live when they were first starting out (I used to model myself on Nick LOL) I love the song 'I wanna be with you' off their first album, it so should have been a single! I went off them after their third album though, they got kinda ballad obsessed - I preffered N'Sync then haha. Justin Timberlake is AMAZING, he can sing, dance and act. I can't believe ppl compare him to Michael Jackson, he's much better IMO - can't stand wacko Jacko anymore, such a shame. Thriller is a great album
