CeeLo Green/Gnarls Barkley - the rape sullied his reputation for me, but "Crazy" is one of my all-time favourite songs. It's so chill, but mysterious and brilliant all the same.
Green Day - solid singles. "Boulevard of Broken Dreams" might just be the best thing they've done.
Katy Perry - the best two songs on her most recent LPs - "Walking on Air" and "Roulette" - were relegated to album track status, so Katy hasn't done the best job as of late with single selection, but as one of the preeminent pop stars from 2008 to now, I have to admit that she has a collection of insanely catchy songs. Her brand of pop is more straightforward and digestible than, say, Gaga's, but for five years she achieved phenomenal chart success with her hits, and I hope the GP starts to embrace her again. She really is one of the best pop females in the game, even if she is a tad basic sometimes.
Shania Twain - would be much higher for me. So many gems to her name, singles and non-singles alike!
P!nk - the surviving pop star of the early noughties! Who would have thought it'd be P!nk of all people? She has been so consistent with the quality of her output...until Beautiful Trauma rolled in, and she's definitely one of my favourite acts of all-time. I think she'd be a few spaces higher, but this is a fairly appropriate ranking for her, in my opinion. Her best song is probably "Who Knew".
Christina Aguilera - thoroughly underrated by the GP these days! Phenomenal singer, with a proven track record of excellence across many genres. She's not afraid to take risks with her music, and she can launch a ballad into the stratosphere like none of the other post-90s female stars. "Beautiful" has saved many lives, I'm sure, but she has a tonne of gems, and I just hope she continues recording great music because there's still more brilliance in her to share with us. It's clear to see I'm a massive fan, and would probably have her about 10 places higher.
Shakira - I think "Trap" is her best single since "Hips Don't Lie".
Lily Allen - great lyricist.
Ariana Grande - my inner lamb wants to say something about her being this much higher than MC, but "God Is a Woman" has effectively silenced any criticisms I have of the young star for a while. She is a huge talent!
Jason Mraz - have you heard "Have It All"? It's brilliant.
Nicki Minaj - when she gets it right ("Monster", "Bottoms Up") there simply isn't a better female rapper alive or deceased.
Janelle Monáe - I just recently started to embrace her, and what a wonder that has been hidden from me for so long. I think I love her as a person more than I do as a musician, but she gets an A+ in both departments really.
Maroon 5 - I feel like they always come back from the dead with a bop that reminds me that they've not yet disbanded.
And the category is: LIVE. WORK. POSE!