The TV presenter lost her temper when the environmental activist accused the media of only reporting the actions of Just Stop Oil, and not the issues of climate change.
The final mourners have paid their respects to the Queen lying in state in Parliament’s Westminster Hall.
The child star sang 'Let It Go' in three languages and when she faltered at the last line Reid joined in with her.
The Prime Minister asked 'Who's Lorraine?' as her show was introduced following his interview on 'Good Morning Britain'.
Piers Morgan has said that he may storm the set of Good Morning Britain when he makes a return to ITV studios to chat with Lorraine Kelly