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So which of this week's massive shows was the best? We compare the arrivals, the performers, the awards and the hair!
Rihanna rocking up to the BRITs in a Christian Dior haute couture purple and turquoise enssemble.
At the Grammys, she elected to go for a eye-catching Jean Paul Gautier cream dress with Louboutin shoes. Which outfit of hers do you prefer?
Tinie Tempah arriving for the 2011 Brit Awards in a stunning cream tuxedo. We were expecting trousers to match though TT!
Bruno Mars poses with the Smeezingtons in 60s style Rat Pack fitting suits.
JB opts for a smart-casual look at the BRITs. He's got the shirt and tie, but elected to wear a fitting leather jacket with jeans. We're not too sure about this look.
Whereas at the Grammys, Bieber rocked the cream tux. We're liking this one, but which of his award outfits is better? Tell us in the comments area below:
Katy and Russell showing their love at the Grammys. Their outfits also complement each other - Russell's slate suit works well with Katy's bejewelled Armani gown.
Cheryl and Rihanna were our favourite couple at the BRITs. Both looked absolutely stunning at the ceremony.
In one of the more unusual performances of the evening a very colourful Cee-Lo Green teamed up with Gwyneth Paltrow and The Muppets. But Cee-Lo looked absolutely brilliant.
Cee Lo Green teamed up with Paloma Faith at the Brits, but elected for a more conservative look. Paloma as always looked stunning.
Gaga's dancers during her performance of 'Born This Way' were absolutely mesmerising.
Take That's dancers were dressed as riot cops in shields and helmets. Not as glam as Gaga's dancers, but we were impressed by the choreography.
Our favourite family snap at the BRITs was this one as an overjoyed Tinie teamed up with his proud mum and dad for a snap at the BRITs.
But for sheer star power, this family pic at the Grammys wins out. Will and wife Jada pose with their talented daughter Willow.
You may have noticed that Willow Smith looked incredibly tall in the last pic. That's because she was wearing these amazing platform shoes. We reckon there's almost six inches of wedge right there. Great accessory!
However, we reckon Adele wins the accessory crown as her diamond earrings at the BRITs were reportedly worth a huge £50,000. Bling and bling again.
Usher teamed up with JB at the Grammys for a eagerly-awaited collab. Was a great performance too!
The BRITs didn't have a massive collaboration this year, however Eric Turner and Labrinth joined Tinie on-stage for a trio of the stars biggest hits.
She's not one too make a discrete entrance to a party is she. Gaga arrived at the Grammys inside a giant egg. She spent three hours inside the thing too!
Okay so none of the entrances at the BRITs compared to Gaga's audacious effort, but Taio Cruz claimed on Twitter that he was arriving at the BRITs in a Rolls Royce escorted by BMW motorbikes. Sorry Taio, still doesn't really compare to Gaga's effort!
There were several backstage hook-ups at the Grammys but none came bigger than this trio.
At the BRITs, it was the girls who spent a lot of time together. Rihanna spent a lot of time having girly catch-ups with Pixie Lott and Cheryl Cole.
Which award do you prefer? Here's the understated Grammys gramophone statuette.
The BRITs meanwhile had a redesigned award by Vivienne Westwood. However some critics have compared the look of the new award to a bottle of bubble bath liquid!
Jessie J rocked up to the BRITs in this emerald green Vivienne Westwood number. What do you think of it?
Not many people can get away with this incredible leapord print ensemble which looks like it's been painted on. We reckon this is a little more outrageous than Jessie's BRITs effort, but what do you think?