This list is a little weird but My faves my a few appearances
KING B
06 Beyoncé feat. Sean Paul - "Baby Boy" (2003)
13 Beyoncé feat. Jay Z - "Crazy In Love" (2003)
23 Beyoncé - "Sweet Dreams" (2009)
41 Beyoncé - "Single Ladies (Put A Ring On It)" (2008)
53 Destiny's Child - "Survivor" (2001)
62 Beyoncé feat. Kanye West - "Ego" (2009)
82 Beyoncé - "Naughty Girl" (2004)
RiRi
10 Rihanna - "S&M" (2011)
25 Rihanna - "Disturbia" (2008)
51 Rihanna feat. Jay Z - "Umbrella" (2007)
72 Rihanna/Young Jeezy - "Hard" (2010)
93 Rihanna - "Rude Boy" (2010)