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13 February 2012, 02:47 | Updated: 13 February 2012, 03:32
The 'Marry The Night' was pictured giving the former Beatle a show of her affection in Los Angeles.
Lady Gaga was pictured giving Sir Paul McCartney a big kiss as they took to their seats at the Staples Center in Los Angeles for the 54th Annual Grammy Awards tonight (12th February).
The 'You & I' singer was wearing an armour like black outfit with a mesh that was covering her face and exposed skin as the showed her affection.
The former Beatles star took to the stage earlier in the event as he gave an emotional rendition of his new song 'My Valentine'.
Lady Gaga is also nominated for an array of awards including Album Of The Year for her 2011 album 'Born This Way', which featured the singles 'Marry The Night' and 'Judas'.
Capital will be coming live from the Grammy Awards in Los Angeles throughout the night.
Check out our Grammy Awards area for all the latest news, pictures and interviews from this year's ceremony.
You can view a picture of Lady Gaga with Sir Paul McCartney below.