Smoking hot! Sultry Rihanna puffs on a cigarette while filming her new video in the Northern Ireland countryside

When news broke that Calvin Harris and Rihanna had recorded a track together the couple were warned that the single had better be good. We Found Love has already reached number three on the US iTunes chart and it seems Rihanna is trying her hardest to make the video a hit too. Rihanna, 23, flew to Bangor, County Down, Belfast, and today began filming the video for her collaboration with dance music producer Calvin Harris.

Kim Kardashian" Gorgeously Promoting Kardashian Kollection

Kim Kardashian" Gorgeously Promoting Kardashian Kollection

Bikini-clad Kim Kardashian and new husband Kris Humphries

Bikini-clad Kim Kardashian and new husband Kris Humphries

Kim Kardashian and new husband Kris Humphries play a one-on-one game of basketball (no prizes for guessing the winner)

Kim Kardashian is certainly game for a challenge. The 30-year-old decided to go head-to-head with new husband Kris Humphries on the basketball court in his hometown in these newly-released photographs. The rub? Not only does the 6ft 9in 26-year-old tower over his diminutive 5ft 2in wife's, but he's also a professional athlete in the sport.

From flab to fab: Britney is back to her toned best in Moscow as vigorous Femme Fatale routines finally pay off

Britney has been gradually regaining form for weeks now, and tonight in Moscow, the blonde was back to her very best. Looking lithe and toned in the revealing corsets she dons on stage, the 29-year-old hasn't even a hint of the paunch she sported at the start of the Femme Fatale tour. The Hold it Against Me star kicked of the European leg of the extravaganza in St Petersburg, Russia, Thursday night to a rapturous response, though it was not sold out.

Bikini girl Ashlee Simpson parties in polka dots during Mexican holiday

Her son is at home being taken care of by her ex-husband. So Ashlee Simpson was free to really live it up worry-free during a girls holiday to Mexico this week. The mother-of-one let her hair down, clutching a drink while she danced with her friends by the pool.

Dance The Night Away! Jennifer Lopez gets frisky Las Vegas style as she hosts post-performance club night at Caesars Palace

After her rousing performance at the iHeartRadio music festival this weekend, it would have been rather a comedown to go straight to bed. And 42-year-old Jennifer Lopez clearly had no intention of hitting the hay as she continued the party at Pure nightclub inside Casars Palace. The star showed up in a form-fitting halterneck dress and proceeded to dance the night away to the delight of the crowd.