1. Must be from a major commercially released studio album. That means no videos from soundtracks, no mixtapes, no promotional CDs, etc.
2. Must be a solo video where the artist is the lead credited singer. So, no Destiny's Child videos from Beyoncé, or "Feeling Myself" — that's a Nicki Minaj video.
3. Must be an official music video. No promotional videos, no lyric videos, etc.
4. Also, I didn't include anything from Cheek to Cheek because damn Gaga, we want a solo album ASAP.
1. Britney Spears
2. Taylor Swift
3. Miley Cyrus
Miley's First Video: 2007's "Start All Over"
Miley's Latest Video: 2013's "Adore You"
What's Next: Miley's hosting the 2015 VMAs and she's working on a new album — which she might release for free.
4. Nicki Minaj
Nicki's First Video: 2010's "Massive Attack"
Nicki's Latest Video: 2015's "The Night Is Still Young"
What's Next: Nicki just wrapped up her tour for The Pinkprint.
Rihanna's First Video: 2005's "Pon de Replay"
Rihanna's Latest Video: 2015's "Bitch Better Have My Money"
What's Next: I mean, there's supposed to be an album coming? But who knows when it's going to drop. Hell might freeze over before Rihanna drops #R8.
6. Katy Perry
Katy's First Video: 2007's "Ur So Gay"
Katy's Latest Video: 2014's "This Is How We Do"
What's Next: A new album in 2016...HOPEFULLY EARLY IN THE YEAR. Katy Cats want new material!
7. Lady Gaga
Lady Gaga's First Video: 2008's "Just Dance"
Lady Gaga's Latest Video: 2014's "G.U.Y."
What's Next: A lead role on American Horror Story: Hotel this fall AND she's started to tease a new album. YAAASS GAGA YAAASS.
8. Lana Del Rey
Lana's First Video: 2011's "Video Games"
Lana's Latest Video: 2015's "High By The Beach"
What's Next: Honeymoon is dropping September 18. That's all.
9. Kelly Clarkson
Kelly's First Video: 2002's "Before Your Love"
Kelly's Latest Video: 2015's "Invincible"
What's Next: Kelly is on tour right now through the fall in support of Piece by Piece.
Shakira's First Video: 1995's "Estoy Aquí"
Shakira's Most Recent Video: 2014's "Dare (La La La)"
What's Next: Shakira is voicing a gazelle in Disney's Zootopia, out next year. She'll also be singing a new song, "Try Everything", for the flick!
11. Demi Lovato
Demi's First Video: 2008's "Get Back"
Demi's Latest Video: 2015's "Cool For The Summer"
What's Next: A full studio album, (allegedly) complete with an Iggy Azalea cameo, soon!
12. Jennifer Lopez
J.Lo's First Video: 1999's "If You Had My Love"
J.Lo's Latest Video: 2014's "Booty"
What's Next: Jenny from the block has a Las Vegas residency starting January 2016.
13. Mariah Carey
Mariah's First Video: 1990's "Vision of Love"
Mariah's Latest Video: 2015's "Infinity"
What's Next: The final leg of Mimi's Las Vegas residency kicks off February 2016.
Madonna's First Video: 1982's "Everybody"
Madonna's Latest Video: 2015's "Bitch I'm Madonna"
What's Next: Still going strong at 57, Madge is touring for her Rebel Heart album, starting September 2015.