2000 - present: Britney
2009 - present: Gaga
2010 - present: Kesha
2014 - present: Ariana

I also love Nicki/Rih/Bey but i don't stan

2008 - 2009: Shakira
2008 - 2010: P!nk
2009 - 2011: Beyoncé
2009 - 2010: Paloma Faith (nnn i still like ha tho)
2009 - 2010: Black Eyed Peas
2010 - Present: Lady Gaga
2010 - 2012: Katy Perry
2011 - Present: Britney Spears
2011 - 2012: Nicki Minaj
2012 - Present: Adele
2012 - 2013: Lana Del Rey
2012 - 2012: Avril Lavigne
2012 - 2013 / 2015 - Present: Rihanna
2013 - 2013: Ellie Goulding
2013 - 2014: Marina and the Diamonds
2014 - 2015: Sia

I STILL like them all (except Avril srry)

2003-Present: Beyonce
2013-Present: Ariana Grande
2013-Present: Selena Gomez
2014-Present: Mariah Carey
2014-Present: Justin Bieber
2010-2014: Nicki Minaj
2010-2011: Rihanna
2013-2014: Katy Perry
2015: Adele

2007 - gwen stefani
2008/2009 - britney spears
2010 - christina aguilera
2011 - no one
2012 - rihanna
2013 - rihanna/beyonce/ciara
2014 - rih, nicki minaj, ariana, lana, charli xcx, rihanna
2015 - rih, lorde, ariana, charli xcx
2016 - rihanna, kali uchis, lorde, ariana, britney, ciara, MIA

First and last main fave. Religious, therapeutic experience:
2011 - Present : Katy Perry

Stanning as in going to multiple foreign shows and collecting stuff:
2015 - Present : Halsey