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1.
T.I. continued to dominate the charts with two back-to-back No. 1s: “Whatever You Like” and “Live Your Life” (feat. Rihanna).
6.
After being accused of cheating, Joe took to his Myspace to to deny he had ever cheated on Taylor.
Ethan Miller / Getty Images
Stephen Shugerman / Getty Images, Amy Graves
8.
Paris Hilton and Benji Madden announced they had broken up after dating for close to 10 months.
Ethan Miller / Getty Images
9.
Rihanna was a big winner at the AMAs, winning both the Favorite Soul/R&B Female Artist and the Favorite Pop/Rock Female Artist award.
Frederick M. Brown
10.
Ashlee Simpson-Wentz and her then-hubby Pete Wentz welcomed son Bronx Mowgli Wentz into the world.
Jerry T. Lai / Getty Images
11.
Beyoncé was busy promoting her new film Cadillac Records (where she portrayed Etta James)…
Alberto E. Rodriguez / Getty Images
12.
…and her third solo album, I Am… Sasha Fierce.
Sony Music
13.
Quantum of Solace and Slumdog Millionaire were released into theaters…
Sony Pictures, Fox Searchlight
14.
…as was a little movie called Twilight.
Summit Entertainment
15.
H&M released its collaboration with Comme des Garçons.
Target, Alexander McQueen
17.
People magazine named Hugh Jackman the “Sexiest Man Alive!”
People Inc.
19.
And yes, Angelina vs. Jennifer Aniston was still very much a tabloid topic.
20.
Britney Spears made a surprise appearance during Madonna’s LA show for her Sticky & Sweet Tour. The two dueted to Madge’s “Human Nature.”
Kevin Winter / Getty Images
Kevin Winter / Getty Images, Bryan Bedder / Getty Images
22.
TRL aired its final episode, with the last video played being Britney’s “…Baby One More Time.”
Scott Gries / Getty Images
23.
And finally, Barack Obama was elected 44th President of the United States.
Emmanuel Dunand / AFP / Getty Images