Forbes compiles its annual Celebrity 100 list by looking at both the pretax income (from May 1, 2011 to May 1, 2012) and fame of Hollywood's biggest and brightest stars -- meaning how often we see their names and faces on TV, in movies and online, as well as their social media following.
Taking all of that into consideration, Lopez is sitting pretty atop the high-powered list, and it's no surprise, especially after the banner professional year she's had. According to Forbes, Lopez brought in $52 million in earnings over the past year, and when that's added to her star power, it's clear to see she's no longer just a singer -- she's a brand, and has ample avenues to promote her various endeavors.
Whether she's judging "American Idol," filming a new music video, promoting a new film or chatting about her ex-husband Marc Anthony (or current boyfriend Casper Smart), it's hard to miss Lopez in the entertainment world these days -- and easy to see why Forbes considers her today's top celebrity.
Trailing behind Lopez is Oprah Winfrey, who brought in a whopping $165 million in the past year. She may have ended her talk show in 2011, but she has continued to create headlines thanks to her OWN cable network -- though she may not have the everyday media presence Lopez seems to command.
Justin Bieber lands at No. 3 on Forbes' list and while he's only 18 years old, it's no surprise that the entertainer and mogul-in-training -- he made $55 million in the last year -- made the cut. After all, he makes hundreds of millions of young fans scream on a daily basis.
Rihanna and Lady Gaga round out the No. 4 and No. 5 spots, respectively, on Forbes' 2012 list.
Other stars making the Celebrity 100 list include first-timers Kim Kardashian (No. 7, with $18 million and lots o' divorce drama), Khloe Kardashian (No. 73, with $11 million and a popular reality show) and the one and only Ashton Kutcher, whose personal divorce drama and professional gain with a role on "Two and a Half Men" helped him land on the list for the first time at No. 51, with $24 million in earnings.
Lady Gaga rocked some 80's style while leaving her apartment building in New York City on June 6.
Eva Longoria and Felicity Huffman had a little "Desperate Housewives" reunion at the AFI Life Achievement Award: A Tribute To Jane Fonda at the Dolby Theatre in Hollywood, California on June 5.
Lindsay Lohan was seen at Chiltern Firehouse in London on June 5.
Scott Disick attended the 2014 FIFA World Cup McDonald's launch party at Pillars 38 on June 5 in New York City.
Lena Dunham was seen rocking a "No Comment" sweater while out and about in New York City on June 5.
Hilary Duff was all smiles as she ran errands on June 5 in Beverly Hills, California.
Channing Tatum has some fun at the "22 Jump Street" premiere at AMC Lincoln Square Theater on June 4 in New York City.
Nicole Kidman and Keith Urban attended the 2014 CMT Music Awards at the Bridgestone Arena on June 4 in Nashville, Tennessee.
Carrie Underwood attended the 2014 CMT Music Awards at the Bridgestone Arena on June 4 in Nashville, Tennessee.
Kendall and Kylie Jenner were seen stepping out in New York City on June 4.
Bradley Cooper got whipped into shape by military personnel while filming scenes for his upcoming movie "American Sniper" in Los Angeles, California on June 4.
Sarah Jessica Parker went for a walk on June 4 in New York City.
Emma Roberts and Evan Peters enjoyed a romantic stroll on the beach together while vacationing in Maui, Hawaii on June 3.
Kim Kardashian stopped by Craig's in West Hollywood, California to have lunch with her mom Kris Jenner on June 3.
Taylor Schilling attended the Glamour Women of the Year Awards at Berkeley Square Gardens on June 3 in London, England.
Miranda Lambert stopped by ABC studios for an appearance on "Good Morning America" in New York Cit on June 3.
Angelina Jolie attended the "Maleficent" photo call at The Bund on June 3 in Shanghai, China.
John Mayer enjoyed dinner out at Madeo Restaurant on June 2 in West Hollywood, California.
Blake Lively left her hotel with designer Michael Kors and headed to the 2014 CDFA Awards on June 2 in New York City.
Gwen Stefani spotted leaving a skin care clinic while out and about in Beverly Hills, California on June 2.
Katie Holmes spotted picking up Jergens Natural Glow Daily Moisturizer in New York City on June 2.
Pete Wentz took a test drive of the new Mario Kart 8 for Wii U in Los Angeles, California on June 2.
Halle Berry attended the Huading Film Awards on June 1 at Ricardo Montalban Theatre in Los Angeles, California.
Kim Kardashian was seen at LAX on June 1 in Los Angeles, California.
Shailene Woodley was seen leaving the Bowery Hotel in New York City on June 1.
Marion Cotillard spotted out and about with a friend in New York City on June 1.
Khloe Kardashian chatted away on her cell phone as she arrived on a red eye flight at JFK airport in New York on May 31.
Naomi Watts headed to the gym for a morning workout on May 30 in Brentwood, California
Jane Lynch signed copies of her book "Marlene, Marlene, Queen of Mean" at the 2014 Bookexpo America at The Jacob K. Javits Convention Center on May 29 in New York City.
Taylor Schilling, Jason Biggs and Laura Prepon attended a photo call to launch season 2 of Netflix exclusive series "Orange Is The New Black" on May 29 in London.
Peter Facinelli and Jaimie Alexander shared a kiss after their work out at a gym in West Hollywood, California on May 29.
Mariah Carey at the 2014 Fresh Air Fund Honoring Our American Hero at Pier Sixty in New York City on May 29.
Farrah Abraham spotted posing for cameras in New York City on May 29.
Prince William and Kate Middleton visited Strathearn Community Campus in Crieff, Scotland on May 29.
"The Bachelorette" Season 1 couple Trista and Ryan Sutter stopped to pose for the cameras while out and about in New York City on May 29.
Angelina Jolie and Brad Pitt at the Los Angeles premiere of "Maleficent" at the El Capitan Theatre in Hollywood, California on May 28.
Chris Martin and his band Coldplay perform live at the Casino de Paris on May 28 in Paris.
Hilary Duff stopped by a nail salon in Los Angeles, California on May 28.
Scott Disick spotted out and about with a friend in New York City on May 28.
Emily Blunt attended the premiere of "Edge Of Tomorrow" on May 28 in London.
Nina Dobrev wowed at the World Music Awards 2014 at Sporting Monte-Carlo on May 27.
Kristen Stewart departed on a flight at LAX airport in Los Angeles, California with her bodyguard on May 27.
Amanda Seyfried, Charlize Theron and Seth MacFarlane attended a photo call to promote "A Million Ways To Die In The West" on May 27 in London, England.
Jennifer Garner met a friend for lunch at Larchmont Bungalow in Los Angeles, California on May 27.
Tom Cruise attended "Edge Of Tomorrow" photocall at Terrazza Civita on May 27 in Rome, Italy.
Kaley Cuoco and her husband Ryan Sweeting attended Joel Silver's Annual Memorial Day Party at his home in Malibu, California on May 26.
Kris Jenner and baby North West left Florence Airport after Kim Kardashian And Kanye West's wedding on May 25 in Florence, Italy.
Emma Watson, in a cap and gown, attending Brown University’s 2014 Graduation Ceremony in Providence, Rhode Island on May 25.
Eva Longoria had a busy morning in Los Angeles, California on May 25.
Iggy Azalea arrived at The Bank nightclub at the Bellagio on May 24 in Las Vegas, Nevada.
Supermodel Hilary Rhoda and her fiance former "DWTS" contestant Sean Avery celebrated Memorial Day with Tequila Don Julio cocktails from the Airstream speakeasy in the Hampton's on May 24.