Getty
Our fourth round grudge match features Madonna vs. Katy Perry. There's no denying that Madge is a musical icon -- her upcoming CD 'M.D.N.A' is one of the most anticipated albums so far this year. But while Miss Perry might not outrank Madonna in years, she's certainly no slouch when it comes to No. 1 hits. Perry and her 'Teenage Dream' CD came this close to beating Michael Jackson's record for most No. 1s off a single album.
Who do you think should win round four of our "Most Influential Woman in Pop" March Madness bracket? Vote below ... and check back on Friday (March 16) to see the next two divas battling it out in round five.

See Where Madonna Falls on Our 'One Name Wonders' Countdown
- 20. Dev
- Selena
- 18. Charice
- 17. Jewel
- 16. Seal
- 15. Estelle
- 14. Sade
- 14. Moby
- 12. Beck
- 11. Shakira
- 10. Morrissey
- 9. P!nk
- 8. Fergie
- 7. Rihanna
- 6. Usher
- 5. Madonna
- 4. Beyonce
- 3. Adele
- 2. Prince
- 1. Cher
- Awkward Award Show Moments
- Most Awkward Behind-the-Bro Hug
- Best Slink Down the Red Carpet
- Most Cringe-Worthy Embrace
- Best 'Someone Please Save Me' Face
- Most Lopsided Hug
- Best 'Why Am I Posing With These People?' Face
- Best 'We Don't Really Want to Kiss Each Other' Kiss
- Most Uncomfortable-Looking Conversation
- Most Sketchy Side-Eye Hug
- Best 'If Looks Could Kill' Face
- Most Unfortunate Dance Moves
- Most Unnerving Dress
- Best 'Get That Camera Out of My Face' Face
- Most Awkward Head to Bosom Ratio
- Most Well-Placed Priorites
- Best Model Leer
- Most Uncomfortable Body Language
- Best Kiss Miss
- Best Audience Push Down
- Best Disapproving Photo Bomb
- Best Muppet Smackdown
- Madonna's Sporty Side Through the Years
- Madonna in 'A League of Their Own'
- Madonna's Fling With Dennis Rodman
- Madonna's Quest to Find the Perfect (Unique) Workout
- Madonna's Long Love Affair With Jogging
- Madonna's Fling With New York Yankee Alex Rodriguez
- The Material Mom Takes Her Kids Deep Ocean Swimming
- The Material Mom Takes Her Kids Deep Ocean Swimming
- Madge's Obsession With Horses
- Madonna's Dedication to All Things Fitness
- Celebrity Heroes: Musicians Who Have Saved the Day
- J.C. Chasez Saves Baby on Beach
- Kelly Osbourne Stops Car Theft and Vandalism
- Michael Jackson Saves Janet Jackson's Ex-Husband From Suicide Jump
- Garth Brooks Saves Two Kids From Burning Building
- Carrie Underwood Resuces Dog From Highway
- Christina Perri Fends Off a Carjacker
- T.I. Talks Suicide Jumper Off Ledge
- Sarah McLaughlin Saves a Rapper From Suicide
- Ryan Gosling Breaks Up a NYC Street Fight
- Accident-Prone Pop Stars
- Kelly Osbourne
- Justin Bieber
- Jessie J
- P!nk
- SkyBlu of LMFAO
- Rihanna
- Sean "Diddy" Combs
Kellie Pickler Named 'Dancing With the Stars' Champion
Taylor Swift Dominates at 2013 Billboard Music Awards
Beyonce Releases New Anthem, 'Grown Woman'
J. Cole Performs 'Born Sinner' on 'Late Night With Jimmy Fallon,' Reveals Competitive Spirit Against Kanye West
Blake Shelton Will Return for Season 5 of 'The Voice'
Blake Shelton Joins NBC in Organizing Oklahoma Tornado Benefit Concert
Toby Keith Says His Hometown of Moore, Oklahoma 'Will Perservere' After Deadly Tornado
Carrie Underwood 'Goats' Hunter Hayes With Blown Away Tour Prank
Toby Keith Returns to Help Family, Friends in Moore, Oklahoma
Carrie Underwood Says She's 'Queen of Awkward' in Marie Claire Interview
7 Comments