Hilary Duff hits the gym in West Hollywood, California on December 26.
Caught on Camera —
Hilary Duff hits the gym in West Hollywood, California on December 26.
Javiles/FAMEFLYNET
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Christmas Day Service on December 25 in King's Lynn, England.
Caught on Camera —
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Christmas Day Service on December 25 in King's Lynn, England.
Chris Jackson/Getty Images
Kristen Stewart enjoys the day on December 24 in Silverlake, California.
Caught on Camera —
Kristen Stewart enjoys the day on December 24 in Silverlake, California.
Paris Hilton stops by a salon on December 24 in Beverly Hills, California.
Caught on Camera —
Paris Hilton stops by a salon on December 24 in Beverly Hills, California.
VM/Dmac/FAMEFLYNET PICTURES
Melanie Griffith steps out on in Aspen, Colorado on December 24.
Caught on Camera —
Melanie Griffith steps out on in Aspen, Colorado on December 24.
Dunkin D/FAMEFLYNET PICTURES
Rihanna spotted out Christmas shopping in New York City on December 23.
Caught on Camera —
Rihanna spotted out Christmas shopping in New York City on December 23.
JD/FAMEFLYNET PICTURES
Prince Harry takes part in a charity football match on Christmas Eve in Norfolk, England on December 24.
Caught on Camera —
Prince Harry takes part in a charity football match on Christmas Eve in Norfolk, England on December 24.
FameFlynetUK/FAMEFLYNET PICTURES
Mariah Carey steps out in Aspen, Colorado on December 23.
Caught on Camera —
Mariah Carey steps out in Aspen, Colorado on December 23.
Dunkin D/FAMEFLYNET PICTURES
Amy Adams attends a screening on December 23 in Westwood, California.
Caught on Camera —
Amy Adams attends a screening on December 23 in Westwood, California.
Charley Gallay/Getty Images for The Weinstein Co.
Kylie and Kendall Jenner grab lunch in Calabasas, California on December 23.
Caught on Camera —
Kylie and Kendall Jenner grab lunch in Calabasas, California on December 23.
WCP/FAMEFLYNET PICTURES
Jason Derulo performs onstage on December 22 in Tampa, Florida.
Caught on Camera —
Jason Derulo performs onstage on December 22 in Tampa, Florida.
Gerardo Mora/Getty Images for iHeartMedia
Khloe Kardashian out Christmas shopping in Beverly Hills, California on December 22.
Caught on Camera —
Khloe Kardashian out Christmas shopping in Beverly Hills, California on December 22.
Bruce/4CRNS/WCP/FAMEFLYNET
Jessie J answers questions during an interview on December 22 in Tampa, Florida.
Caught on Camera —
Jessie J answers questions during an interview on December 22 in Tampa, Florida.
John Parra/Getty Images for iHeartMedia
Sharon Osbourne shopping in Beverly Hills on December 23.
Caught on Camera —
Sharon Osbourne shopping in Beverly Hills on December 23.
Premiere/FAMEFLYNET PICTURES
Demi Lovato performs on December 22 in Tampa, Florida.
Caught on Camera —
Demi Lovato performs on December 22 in Tampa, Florida.
Alexander Tamargo/Getty Images for iHeartMedia
Kim Kardashian and Kanye West on a coffee date on December 22.
Caught on Camera —
Kim Kardashian and Kanye West on a coffee date on December 22.
X17Online
Pharrell Williams is "Happy" to greet model Karolina Kurkova at Y100's Jingle Ball in Miami on December 21.
Caught on Camera —
Pharrell Williams is "Happy" to greet model Karolina Kurkova at Y100's Jingle Ball in Miami on December 21.
Gustavo Caballero/Getty Images for iHeartMedia
A festive Ariana Grande rocks the stage at Y100's Jingle Ball in Miami on December 21.
Caught on Camera —
A festive Ariana Grande rocks the stage at Y100's Jingle Ball in Miami on December 21.
Larry Marano/Getty Images for iHeartMedia
Hilary Duff takes her carrots to go on December 22.
Caught on Camera —
Hilary Duff takes her carrots to go on December 22.
Fame Pictures
Taylor Swift looks prepared for winter's chill on December 19.
Caught on Camera —
Taylor Swift looks prepared for winter's chill on December 19.
X17Online