Lorraine Kelly has apologised to her viewers for her strange behaviour on Monday after many thought her bizarre outbursts were part of Ant and Dec's Saturday Night Takeaway prank. Viewers flocked to Twitter so say they thought the 61-year-old had the Geordie duo instructing her via an earpiece.Many were left scratching their heads yesterday as Lorraine batted a fly away, claimed there was a mouse in the studio and also had cramp in her leg all as she spoke to rapper KSI.