Selena Gomez makes an appearance at the 'Late Show With David Letterman' in New York City on March 18.
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Dwayne Johnson attends the UK premiere of "G.I. Joe: Retaliation" at Empire Leicester Square on March 18.
Calista Flockhart out and about in Brentwood, CA on March 19.
Vanessa Hudgens & Ashley Tisdale head to the gym together in West Hollywood, CA on March 19.
Peter Kramer/NBC/NBC NewsWire
Hoda Kotb and Lisa Rinna appear on NBC News' "Today" show on March 19.
Thousands of people pack St. Peter's Square to watch Pope Francis' inauguartion and first mass on March 19, 2013 in Vatican City, Italy. Pope Francis spoke of the need to protect "all creation, the beauty of the created world" and warned that "Whenever human beings fail to live up to this responsibility, whenever we fail to care for creation and for our brothers and sisters, the way is opened to destruction and hearts are hardened."
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Justin Timberlake poses at the iHeartRadio "20/20" album release party with Justin Timberlake presented by Target at the El Rey Theatre on March 18.
Lisa Vanderpump arrives to the after party at Planet Dailies in LA to celebrate the premiere of this season's Dancing With the Stars hosted by Kym Johnson & Ingo Rademacher.
Pretty Little Liars actress Shay Mitchell takes a texting break while in Los Angeles sporting the U by Kotex Generation Know bracelet (symbolizing her pledge to learn about girls’ health and to spread that knowledge to others)
Ryan Lochte films scenes for his reality TV show 'What Would Ryan Lochte Do?' on the beach on Miami, Florida on March 18.
Britney Spears and her former husband Kevin Federline come together to watch their sons Sean and Jayden play soccer in Woodland Hills, CA on March 16.
Jennifer Garner is ready for St. Patrick's Day as she has lots of green on while grocery shopping at Gelson's with her kids Seraphina and Samuel in Brentwood, CA on March 17.
Rosario Dawson arrives at Heathrow Airport on a flight from Los Angeles on March 18 in London, England.
Sofia Vergara takes a taxi to an office building on March 18 in New York City.
Ice-T surprises his wife Nicole 'Coco' Austin for her birthday with the help of a few friends at Gordon Ramsey's BurGR at Planet Hollywood in Las Vegas, Nevada on March 17.
Larry Busacca/Getty Images for GLAAD
Anderson Cooper and Madonna attend the 24th Annual GLAAD Media Awards on March 16 in New York City.
"Honey Boo Boo" Alana Thompson films scenes for her reality show in McIntyre, Georgia on March 17.
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Olivia Munn and Joel Kinnaman attend a basketball game between the Sacramento Kings and the Los Angeles Lakers at Staples Center on March 17.
David Beckham carries his daughter Harper as the pair step out and about in London, England on March 18.
Kelly Bensimon flaunts her body in Miami, Florida on March 17.
Kellie Pickler goes to rehearsals for "Dancing With the Stars" on March 17 in Hollywood, CA.
Snoop Lion roared into SXSW in Austin when he headlined at VICELAND hosted by VICE (http://www.vice.com/en_us) media to launch his new album and documentary, Reincarnated. Concert-goers got an added cure-all at the Beats by Dr. Dre Pill Clinic all week with free Wi-Fi, charging stations, food, drinks and music.
John Sciulli/Getty Images for Samsung
Prince performs as Samsung Galaxy presents Prince and A Tribe Called Quest at SXSW on March 16, 2013 in Austin, Texas.
John Sciulli/Getty Images for Samsung
Phife Dawg, Q-Tip, Ali Shaheed Muhammad and Jarobi White of A Tribe Called Quest perform as Samsung Galaxy presents A Tribe Called Quest and Prince at SXSW on March 16, 2013 in Austin, Texas.
Deadmau5 Djs at the Sonos Studio at SXSW and experienced the Sonos PLAYGROUND interactive audio-visual exhibition.
Gossip Girl star Kaylee DeFer took a break from the music at the SXSW festival to visit the Dickies Lounge at Lustre Pearl on March 16.
Neil Lupin/Redferns via Getty Images
Darius Rucker, LeAnn Rimes, Carrie Underwood and Brantley Gilbert attend a photo call ahead of performing on Day 2 of C2C: Country To Country Festival 2013 at O2 Arena on March 17.
Seattle rappers Mackelmore and Ryan Lewis brought the house down at the SXSW festival at Perez Hilton’s “One Night in Austin” on March 16, where guests enjoyed drinks by Strongbow and sweet treats from Tic Tacs.
Real Husbands of Hollywood star, Nick Cannon, visited the VH1 Café during the SXSW festival on March 16 with a large entourage but minus wife Mariah Carey. Before heading to rehearse for his performance, the father of two sipped a few DISARONNO cocktails and listened to his DJ set at the Monster DNA sound bar and checking out the BUILT tech accessories.