In this week's A-List Insider:

Fifty Shades of Grey gets filthy, Katy Perry takes aim at Taylor Swift and Whitney Houston's daughter Bobbi Kristina is rushed to hospital.

Fifty Shades of Grey filled with Sex scenes

The Fifty Shades of Grey movie just got a whole lot steamier. Film producers have revealed that there will be more than twenty minutes of sex scenes.

So let's do the maths. If the film is 100 minutes long and there's 20 minutes of duct tape, whips and chains, we are going to have to do a thousand hours of charity work to feel like saints again.

The S&M flick is based on EL James' bestselling erotic novel and follows the relationship between playboy billionaire Christian Grey, played by Jamie Dornan and his infatuated student submissive, Anastasia Steele, played by Dakota Johnson.

Fifty Shades, which has been given an 18 certificate, is due for release on 13 February. Valentine's Day sorted then!

Katy Perry takes aim at Taylor Swift

And over in the world of music, it looks like the reported Katy Perry and Taylor Swift beef is far from over.

During her halftime show at this year's super bowl, she made a very subtle dig at her frenemy.

According to Twitter to her dance team joined her onstage wearing high-waisted polka dot bikinis during her performance of California Girls that resembled the bathing suit Taylor wore while on a holiday with Conor Kennedy in August 2012.

Their rift stems from Katy allegedly stealing Taylor's backup dancers.

Coincidence or an obvious dig? Let us know what you think.

Bobbi Kristina Brown in a coma

And finally Bobbi Kristina Brown is fighting for her life after being found over the weekend unconscious, face down, in a bathtub.

The 21-year-old, the only child of the late Whitney Houston and singer Bobby Brown, was found at her home outside Atlanta, Georgia, by her husband Nick Gordon and a friend. Gordon then administered CPR until the ambulance arrived on the scene and continued to carry out lifesaving procedures.

Although little has been revealed about Bobbi Kristina's condition, her family fiend said that she is "surrounded by immediate family" as they ask for "privacy during this difficult time".

The harrowing incident is tragically similar to her mother's death, almost three years ago. In February 2012 was also, found unresponsive in a bath of a Beverley Hills hotel. A coroner later concluded her death was as a result of accidental drowning, though heart disease and cocaine use were contributing factors in her death.