Ke$ha def won't last much longer. TiK ToK was her biggest and while the others were successful yet none had impacted quite like TT did and she got 0 Grammys nods. She will never win a Grammy let alone be nominated for one and the only award she's won in her career was an EMA.
I predict she will easily fade away this year or next year esp since Cannibal didn't live up to expectations than again she is a singles artists cuz she can't sell albums to save her life. Anyways NEXT!
Katy Perry IMO has the appeal to last for awhile. Yes her albums don't sell very well but she every one of her singles has gone to #1 this era and sold very well. She is on a massive smashing roll this era and ppl counted her even back to I Kissed A Girl well look at how hard Hot N Cold smashed and then they counted her out again and TOY didn't live up but stll went top 30 even tho I'm not a huge fan of it again she was really counted out then but Waking Up In Vegas was a top 10 smash. Following that people were saying that she prob wouldn't last much longer here she comes back with California Gurls owning the #1 spot making it undoubtedly the song of the summer and ppl started to notice that they def underestimated her and she got #1 after #1 with Teenage Dream and Firework and I'm sure E.T. will go #1 if not it will smash regardless. I think if she keeps doing what she's doing and is able to keep with the times she will stay relevant.
Rihanna hasn't proven to the haters that she isn't going anywhere. When she first started out she got some good hits again she's not a great album seller but notheless she does well with her singles. I've always loved her music but it wasn't til Umbrella that she became a force to be reckoned with. She just ruled the charts with Umbrella, Take A Bow, Disturbia and Live Your Life (everyone and their gma knows that it was a smash cuz of her cuz look at T.I. now *cough* flop.
) as well having top 10 smashes with HTILY and DSTM. She kinda lost her mojo wit RR for awhile but then RB was a smash but not as much as her other singles. Then she came back stronger with Loud getting 3 more #1's with Only Girl (In The World), What's My Name? and Love The Way You Lie (this is counted as both as Em and RiRi's since they both r #1 hitmakers.
) Again like I said she may not sell albums well but she makes amazing songs that the public loves and her style changing constantly is always interesting and with Jay-Z always backing her she def isn't going anywhere anytime soon.
Lady GaGa to me will last for a long time prob as long as Madonna did and still does. It's clear that the public and media loves her. Her albums sell and her singles own the charts and her music videos are amazing (minus Alejandro). Poker Face, Paparazzi, Bad Romance and Telephone are all great examples of amazing songs/videos. BTW will be another huge era for her and will bring her fame and power even higher. Also one thing she has over all the gurls in this poll she actually has some talent. She is a decent dancer, amazing singer and she plays the piano and other instruments just beautifully. The trinity will never die mark my words.