Lorraine Kelly in the Lorraine studio last weekDaytime legend Lorraine Kelly has lifted the lid on some of her more troublesome celebrity encounters.On Monday, the Bafta winner made an appearance at the Hay Festival of Literature and Arts, where she was quizzed about her best and worst celebrity interviews.As reported by the Daily Mail, Lorraine had two answers when put on the spot about her worst guests, first naming Mariah Carey.She claimed her interview with the We Belong Together singer was a “difficult one”, not because Mariah was a “horrible” guest, but rather because her “first answer was 10 minutes long, and did not make any sense”, suggesting that she may have been “refreshed” at the time.