The 'Holding Onto Heaven' hitmaker, real name Louisa Rose Allen, is a huge fan of the 'Happy' singer and still can't believe he personally asked for her to be his support act on his European tour.
She told the Daily Star newspaper: ''I couldn't quite believe he knew who I was. He said he was a really big fan, he loved my sound and that I was really unique. I did this cover of his song 'Happy' and we chatted about that. He made me feel really comfortable, he's so chilled.
''I remember being a kid and just looking up to him and thinking he's just the king of music.''
It's a big year for the 25-year-old star, who will make her acting debut in an episode of the upcoming eighth series of the hit BBC sci-fi drama 'Doctor Who' but she admitted she initially had some reservations.
She explained: ''It's more singing than acting. That's why I'm doing it. Acting isn't something I thought I would get into.'
'Wilson', starring both Dern and Harrelson, is released in U.S. cinemas on March 24th.
At just 13, Robert Irwin is continuing his father’s legacy and he’s just as enthusiastic about animals as his dad.
Madonna adopted twins Esther and Stella from Malawi earlier this month.