Rihanna unveils another new hair cut, Nicki Minaj promotes her new album, Cheryl films her new video and Jessie J rocks London in this week's round-up of the best Twitter pictures.
Jessie J poses backstage ahead of her performance at the Teenage Cancer Trust gigs at the Royal Albert Hall in London.
Justin Bieber gets slimed after accepting the award for favorite male singer onstage at Nickelodeon's 25th Annual Kids' Choice Awards
Katy Perry was among a host of big names who attended Nickelodeon's 25th Annual Kids' Choice Awards held at Galen Center in Los Angeles. The star wowed on the red carpet in a green outfit and purple hair.
Cheryl Cole shoots the music video for her forthcoming single 'Call My Name' in LA. Photographs from the set showed Cheryl wearing a bright green bra with a leather jacket and print trousers. The track is the first single to be taken from the Girls Aloud star's forthcoming solo album. Picture: Barcroft Media
Rihanna ditches her blonde hair for a new black hair style complete with undercut. The singer changed her style during promotion for her new film 'Battleship' in Japan. Here she is posing with a USS George Washington cap.
Singer Carly Rae Jepsen arrives at the Juno Awards in Canada. The protege of Justin Bieber is currently promoting her debut single 'Call Me Maybe'.
The Wanted were mobbed by screaming fans as they arrived at Toronto Pearson airport in Canada. The group are currently promoting their single 'Glad You Came' and are due to appear on American Idol. Picture: Splash
Jessie J performing onstage during the Teenage Cancer Trust gig at the Royal Albert Hall in London. The singer delighted her fans with a hit laden set.
Will.i.am from The Black Eyed Peas attends a young indigenous AFL players clinic at Sydney Cricket Ground.
Nicki Minaj wears a typically playful outfit at the 2012 Kids Choice Awards in Los Angeles. The rapper's appearance came ahead of the release of her new album 'Pink Friday: Roman Reloaded'.
Una Healy of The Saturdays poses with her fiance Ben Foden and their new baby Aoife in the latest issue of Hello magazine. The couple welcomed the arrival of their first child last month. Picture: Hello Magazine
Frankie Sandford and boyfriend Wayne Bridge were spotted visiting band mate and friend Una Healy's baby in London. All of The Saturdays have now been spotted visiting the arrival of their band mates new child. Picture: INF Photos
Beyonce and Blue Ivy Carter make another public appearance as they step out together in New York for a shopping trip.
Cheryl Cole poses for the latest edition of Marie Claire magazine. The Girls Aloud star speaks candidly in the accompanying interview about her health, future plans and crush on Prince Harry. Picture: Tesh/Marie Claire
Professor Green and Millie Mackintosh step out together as the rapper's girlfriend attends a cast part for Made In Chelsea at Beaufort House in London. Picture: Wenn
'The Wanted' acoustic performance & autograph session at the Bramalea City Centre Mall hosted presented by HMV Canada. Toronto, Canada. Picture: WENN
Rihanna attends the world premiere of Battleship in Japan. The 'Talk That Talk' star was joined by her fellow cast members on the red carpet for the film, which marks her first full-length feature movie.
Katy Perry gestures during a photo opportunity before her performance at the Indian Premier League (IPL) opening ceremony in Chennai, India.
Pixie Lott proved just how much she likes Rihanna as she travelled to Japan to watch the premiere of Battleship - the singer's new movie. The 'Young Foolish Happy' star praised the 'Talk That Talk' singer's portrayal of naval officer Raikes after watching the film.
Wretch 32 performs at an intimate gig in London.
Jessie J performs her second gig in London in a week. The star's performance included her hits 'Domino' and 'Price Tag'.
om Parker and Jay McGuiness of The Wanted Visit MuchMusic HQ.
It may have been dark, but Nicki Minaj made sure she didn't go unnoticed when she was seen out and about in New York City after a day of promotion for her second album 'Pink Friday: Roman Reloaded'. Picture: Eroteme.co.uk
Cover Drive unveiled the artwork for their much anticipated debut album 'Bajan Style', which will include the singles 'Twilight' and current track 'Sparks'.
Nicki Minaj continues promotion for her new album 'Pink Friday: Roman Reloaded' at Best Buy Harlem in New York. The album includes her current track 'Starships'. Picture: Splash
Katy Perry performed for the first time ever in India as she opened the Indian Premiers League in Chennal. The singer had previously visited the country with ex-husband Russell Brand.
Labrinth launches his debut album 'Electronic Earth' in London. The album includes the singles 'Earthquake' and 'Last Time'.
Jay-Z visits Jacob The Jeweler on his anniversary in New York City. Jay-Z was seen leaving Jacob and Co. in New York City with owner Jacob The Jeweler where the two hugged as Jay got into his SUV. His visit coincided with Jay-Z and Beyonce's 4th wedding anniversary. Picture: Splash
Selena Gomez heads to Griffith Park with boyfriend Justin Bieber and have a romantic picnic overlooking the city. Picture: Barcroft
Rihanna poses for Elle magazine. Photo: Tom Munro; styled by Joe Zee. Read the full interview and see more photos in the May issue on newsstands April 17.
The Wanted arrived at LAX Airport to masses of fans. The boys gladly spent time with their fans, who seem to think the way to a British boys heart are tins of Baked Beans. Picture: PacifiCoastNews
Nicole Scherzinger and Lewis Hamilton dine at Hakkasan in London. They left hand in hand as they are pictured for the first time in London since reuniting. Picture: Splash
Canadian rapper was spotted at Stamford Bridge having a kick-a-bout with the Chelsea football team following their Champions League quarter final match with Benfica. Picture: REX