Newly Single Katy Perry Rocks Blue Hair & LBD

Sexy singer, Katy Perry likes to keep things fresh, which is why she’s always seen wearing new hair color at every event. After showing her funky red, blonde and pink hair colors , Katy shocked the audience with her bright blue-teal hair color . 27-year-old star hosted the GiveLove charity event with J. Molinari jewelry designer, Markus Molinari in Las Vegas on January 27, 2012. Newly single Katy Perry chose extraordinary blue color to showed off her sexy bob hairstyle. Katy Perry’s blue bob haircut looked trendy, edgy and super hot. She rocked pink blusher, dark eye makeup and pink lipstick.

Watch Christina Aguilera Sing at Etta James's Funeral

Christina Aguilera was in rare form Saturday night. The singer wore a conservative (by her standards) skirt suit and teared up as she stood on stage at an L.A.-area church while telling hundreds of mourners of her admiration for the late Etta James.

The blonde delivered a heartfelt speech about her connection to the soul singer, who passed away at the age of 73 on January 20. Aguilera nervously explained her love for James and her music and told the crowd she's performed "At Last" at every single one of her concerts over the last 10 years. "I've aspired to sing like her, to be like her, to emulate her notes and her passion, and the love for what she did," Aguilera said before breaking out into song.

Rihanna Wears C-Word Necklace to Check out a Jesus Statue

Rihanna's been having a blast this week in Brazil, where she's performed in itty bitty hot pants, partied with Katy Perry, and visited some of the country's most famous landmarks, including the iconic Christ the Redeemer statue in Rio and its adjacent chapel.

While Rihanna was relatively covered up in a yellow blouse and denim Daisy Dukes, there was one aspect of her ensemble that couldn't possibly be considered Catholic chapel-friendly: Her gold plate necklace, which was emblazoned with a very unpleasant 4-letter word that begins with a "C."

It's likely that Rihanna just hadn't thought her accessories through on this particular pilgrimage. There's also the fact that she uses the C-word pretty liberally, even applying a modified version (NSFW-ish) of it as a nickname for her buddy Katy Perry in public on Twitter. She definitely didn't intend to offend.

William and Kate to Open a Children's Cancer Center

Prince William and wife Kate Middleton (that's the Duke and Duchess of Cambridge to us common folks) announced today that they will open a children's cancer center at the Royal Marsden Hospital. Princess Di was the former president of the London hospital, and Prince William was appointed to the position in 2007.

Wills and Kate have reportedly been quietly researching various charitable organizations in an effort to decide which cause is most near and dear to them. The royal couple will visit the center on September 29, where they will meet staff and patients and take a tour of the facility.

Kate seems to have plans for other major charitable endeavors as well. "The Duchess is using the next few months to get to get to know a number of charitable and other causes better, so she can make well-informed decisions about her future role," a palace spokesman said in a statement.

In a world filled with daily Lohan shenanigans and celebs who take themselves way too seriously, it's great to see this classy couple using their influence to help make the world a better place.