Katy Perry and President Obama tag-teamed a message Sunday night during MTV's Video Music Awards.


Open enrollment for health care exchanges begins Oct. 1, thanks to the Affordable Care Act, and Perry retweeted Obama's note that "If you're one of millions of young Americans w/out health insurance, you can get affordable coverage starting Oct. 1."


"Thanks for spreading the word. #ROAR," he wrote Sunday night, soon after the pop star posed with Richard Simmons for photos ahead of the VMAs.


See Perry's Roar-tastic VMAs look here.


Live updates from the show are available below.



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  • Miley Cyrus




  • Katy Perry in Emanuel Ungaro




  • Lady Gaga in Prabal Gurung




  • Selena Gomez in Atelier Versace




  • Taylor Swift in Hervé Léger By Max Azria




  • Rita Ora in Alexandre Vauthier Couture




  • Ciara in Givenchy




  • Ellie Goulding in Brian Atwood




  • Miley Cyrus in Dolce & Gabbana




  • Katy Perry in Emanuel Ungaro




  • Robin Thicke




  • Erin Wasson in Alexandre Vauthier Couture




  • Naya Rivera




  • Lady Gaga




  • Adam Lambert




  • Lady Gaga




  • Rihanna




  • Drake




  • Lady Gaga




  • Jennifer Hudson




  • Shailene Woodley and Miles Teller




  • Robin Thicke and Paula Patton




  • Wiz Khalifa




  • Iggy Azalea in Emilio Pucci




  • Holland Roden in Naeem Khan




  • 2 Chainz in Versace




  • Lil' Kim




  • Riff Raff




  • Chilli




  • Coco Rocha in Fausto Puglisi




  • Daft Punk




  • Kanye West




  • Justin Timberlake




  • Ryan Lewis and Macklemore




  • Mary Lambert




  • Ashanti




  • Willow and Jaden Smith




  • Joan Smalls




  • Allison Williams




  • Grimes




  • Jemima Kirke




  • DJ Cassidy




  • Sarah Hyland in Marchesa




  • Kendrick Lamar




  • Jillian Rose Reed




  • Flying Lotus




  • Tomo Milicevic, Shannon Leto and Jared Leto




  • Jermaine Fowler




  • J Woww




  • Ronnie Magro and Sammi Giancola




  • Nikki Glaser and Sara Schaefer








The 2013 MTV VMAs were something else. Thanks for joining!











Katy Perry performed "Roar" for the first time, and it was glorious.





















Let's remember this:

















Drake shifts into "Started From The Bottom," obviously.






Because when he isn't taking photos with Taylor Swift, he's a great rapper.






He thanks God, his publicist and his "Mahomies."





















After having a major year with the breakout success of their hit single "Thrift Shop" and the follow-up "Can't Hold Us," Macklemore and Ryan Lewis hit the stage at MTV's Video Music Awards to perform their song "Same Love."

Click here for more on Macklemore's MTV VMA performance.











After being introduced by NBA player Jason Collins and A$AP Rocky.
















One Direction for "Best Song Ever," which was clearly not the best song of the summer, but #mtv.