Adele mistook Elton John for a prank caller and refused to talk to him.

The 21 singer said she received a call from the "Rocket Man" singer before she was due to attend the Grammy Awards ceremony this year where she won in six categories. She, however, thought that the 65-year-old star was someone else playing a joke on her.

"I had no idea who it was and he just started chatting away to me and I passed the phone over to a friend and I was like, 'Yeah, it's Elton.' It still cracks me up. It made me think my God, it's another level now."

Meanwhile the 24-year-old star has revealed that she would be "mortified" if any of her ex-boyfriends wrote songs about her. The "Rolling in the Deep" singer said she would panic if one of her former partners publicly revealed details of their relationship: "I'd f****** s*** myself. I'd be mortified. But also if they wrote songs about me, they'd be: 'This song's about Adele.' I've never given any names ever, but everyone's going to know this song's about me. No-one actually knows who my songs are about."

When asked if she'd like to take some of the details she had revealed on her albums she admitted she would: "Yeah, it's hard...I do wish I'd kept a lot of things to myself, but I never knew the album was going to be so big."