In London, nominees Leonardo DiCaprio and Tom Hardy promoted their Oscar-nominated film, The Revenant.
Jessica Simpson and Eric Johnson came back LA from NYC after a few appearances, while Chloe Moretz stopped by Jimmy Kimmel Live in Hollywood.
See what else your favorite stars were up to.
Hilary Duff Promotes 'Younger' at AOL Build
Hilary Duff promoted 'Younger' at AOL Build on January 13th, 2016 in New York.
Mariah Carey Shops at Van Cleef & Arpels
Mariah Carey went shopping at Van Cleef & Arpels on Rodeo Drive in Beverly Hills, CA on January 13th, 2016.
Reese Witherspoon Films 'Big Little Lies'
Reese Witherspoon spotted on the Pasadena, CA set of HBO's 'Big Little Lies' on January 13th, 2016.
Tom Hardy: UK Premiere of 'The Revenant'
Tom Hardy attends the UK Premiere of 'The Revenant' at Empire Leicester Square on January 14, 2016 in London, England.
John Krasinski & Cheryl Boone Isaac Announce 88th Annual Oscars Nominations
John Krasinski and President of the Academy of Motion Picture Arts and Sciences Cheryl Boone Isaac announce the nominees during the 88th Oscars Nominations Announcement at the Academy of Motion Picture Arts and Sciences on January 14, 2016 in Los Angeles, California.
Jessica Simpson and Eric Johnson Land at LAX
Jessica Simpson and husband Eric Johnson arrive at LAX on January 13th, 2016.