Beyoncé won five Grammys for her iconic debut solo album, Dangerously In Love.
"Hey Ya!" by Outkast started off the year as the No. 1 song in the country.
While "Yeah!" by Usher, feat. Lil Jon would end up being the biggest song of the year. His album Confessions would also be the biggest-selling album of 2004.
The Killers re-released "Mr. Brightside" after the success of "Somebody Told Me" and the song would go on to become a sleeper hit — eventually reaching No. 10 on the Billboard Hot 100 in June of 2005.
Gwen Stefani went solo and released her first album, Love. Angel. Music. Baby.
Friends aired its final episode and it is the most-watched show of the entire 2000s. The series finale was watched by 52.5 million viewers.
While Sex and the City aired its final episode as well — which aired during part two of Season 6.
The SATC finale was also satirized on SNL, where Christina Aguilera delivered a now classic and Snatch Game-worthy performance as Samantha Jones.
Lost premiered on ABC and got everyone hooked immediately.
Desperate Housewives also premiered on ABC and was an immediate sensation.
Entourage debuted on HBO and a lot of douchey guys made the show their entire personality.
The Swan aired on Fox and even for the time was considered a pretty awful reality show. In case you forgot, the premise of the show was that in each episode they would take two "unattractive women" put them on a diet and workout routine, and give them a bunch of plastic surgery, along with therapy. At the end of the episode, they would select one of the women to move along to The Swan Pageant — where they would compete against other contestants from other episodes.
Arnold Schwarzenegger was the governor (aka The Governator) of California and made a memorable appearance on The Tonight Show with Jay Leno alongside Gray Davis, the governor he replaced in a recall election the previous year.
Fantasia Barrino won the third season of American Idol.
Karl Lagerfeld became the first designer to do a collab with H&M. Not only was it a huge success, but it changed the fashion industry as not only H&M, but other lower-priced retailers, decided to do designer collabs.
At that year's Oscars, Charlize Theron won Best Actress for Monster; Sean Penn won Best Actor for Mystic River; Renée Zellweger won Best Supporting Actress for Cold Mountain; and Tim Robbins won Best Supporting Actor for Mystic River.
While Peter Jackson took home three Oscars — Best Director, Best Picture, and Best Adapted Screenplay — for The Lord of the Rings: The Return of the King.
Napoleon Dynamite was released and EVERYONE was quoting it.
EVERYONE was also wearing Vote For Pedro T-shirts they got at Urban Outfitters.
Britney Spears married Kevin Federline.
While Jennifer Lopez and Ben Affleck called off their engagement and broke up. J.Lo would go on to marry Marc Anthony later that year.
Barbie and Ken also announced that they had broken up after 43 years together. Barbie also moved on to a new boyfriend — Blaine, an Australian surfer.
The Notebook was released and had us all crying in the theaters.
And lastly, Mean Girls was released and pop culture was forever changed.
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