Ryan Dunn

By DAILY MAIL REPORTER

She's so obsessed with our feline friends that she calls her fans 'cats' and even named her latest live jaunt the Crazy Cats Tour - now singer Pixie Lott seems determined to look like a moggy.

The 20-year-old star was spotted sporting her new favourite cat ears headband at gossip blogger Perez Hilton's Blue Birthday Ball last night in Los Angeles.

The Mama Do was been seen wearing the feline fashion accessory last week, when she popped to Los Angeles trendy Urth café for her favourite pineapple and banana smoothie - as she told her 406,000 Twitter followers.

Feline fine: The Mama Do singer is currently in LA recording her new album as well as going out on the prowl at night

Pixie's ears are actually part of the range of her official merchandise sold by her record company, meaning her fans can get the cat ears look too, a snip at just £12.99 a pair.

Pixie had accessorised her ears with a short navy minidress and cropped electric jacket with bows on it, and some blue suede and sheepskin stilettos.

The enthusiastic star also wrote on her page: '@PerezHilton Happy Birthday Perez! Thankyou for the fantastic party and lovely to meet you we all had a fab timeeee woo xoxox'

The Essex-native has been in Los Angeles for over a month recording the follow-up to her double-platinum selling 2009 debut album Turn It Up.

Feline blue: Pixie and friends got into the blue-themed spirit of gossip blogger Perez's birthday

Pixie is also hoping to break the States when she releases he current album Turn It Up there later this year.

As well as her music, the stage school-educated youngster wants a movie career too, following her starring role in teen film Fred: The Movie last year - even though her performance was panned.

Her next movie will be be Sweet Baby Jesus, which she stars in alongside Bette Midler, Robbie Coltrane and Sean Brosnan, and which comes out later this year.

Other stars at Perez Hilton's party last night meanwhile included Real Housewives of Beverly Hills stars Camille Grammer and Kyle Richards.

The infamous foes were pictured together on a blue carpet at the bash.

And it seems the pair could hardly bare to look in the same direction as each other, with Camille distractedly averting her gaze away from Kyle.

Say cheese: Camille Grammar, left, looks away from rival Kyle Richards as they posed with their Real Housewives of Beverly Hills co-star Adrienne Maloof and Taylor Armstrong at a Hollywood party last night

Kyle, 42, and Camille, who is also 42 and the ex wife of Frasier star Kelsey Grammer, constantly fell out during the first season of their Bravo reality TV show.

In true Hollywood style, they attempted to patch things up - but their precarious relationship was constantly rocked by back-stabbing and two-faced behaviour.

They were joined by their co-stars Adrienne Maloof and Taylor Armstrong.

Making an effort: Former Disney star Selena Gomez poses with Perez as she turned up to the event with a blue ensemble, plus blue lip stick and make-up

However fellow cast members Lisa Vanderpump and Kim Richards, Kyle's sister, were not in attendance.

Kim and Kyle - who were also constantly at loggerheads during the show - are the aunties of socialite and heiress Paris Hilton.

Other guests at last night's Hollywood party included 18-year-old former Disney star Selena Gomez, who joined the throng of guests in wearing a blue outfit and posed with the afro-wig wearing party host.

Best foot forward: Dancing With The Stars contestant, WWE star Chris Jericho and his professional dancer partner Lacey Schwimmer

But she made an extra special effort, sprucing up her look with blue lipstick and eye make-up.

Dancing With The Stars professional Lacey Schwimmer and her WWE dance partner Chris Jericho also came along.

Meanwhile, burlesque star Dita Von Teese provided some of the entertainment at the gig, changing from her floor-length blue gown into a sexy, sequinned pink number on stage.