Katy Perry promises 'love' performance

Katy Perry is promising his fans a very special Grammys performance.

Katy tweeted, "Tomorrow is Grammy's & boy oh boy do I have a very special performance ready for you. CLUE: The theme is looooooovvvvveeee."

Katy was out and about on Saturday night (at the pre-GRAMMY Gala and Salute To Industry Icons) and it seems she enjoyed the evening, "Mumford & Sons melted peoples brains tonight...as they do... Oh yeah and R Kelly & Cher... #legendarystatus"

After Katy's performance at the Grammys she will be busy preparing for her tour. The star has given up coffee for the tour but from another tweet it seems that's proving hard,

"This just in: my 90 year old grandma tries @starbucks for the first time and... LOVES IT! Now I'm jealous #caffeinewithdrawls"

Grammys 2011

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