Beyonce Knowles was once slapped in the face by her furious mother - who feared stardom has gone to her head.
The Crazy in Love hitmaker admits she gained an arrogant streak after finding fame as a teenager with Destiny's Child.
But her mother Tina brought her back down to earth - by embarrassing her with a public smacking in front of amazed shoppers.
Knowles tells Britain's Daily Telegraph magazine, "There have been times where my mom has literally smacked me in my face. When I was 19 - when I was confused and wondering what am I doing, who am I? - we were in the record store, my mom and dad were both there, and my song was playing, and I was feeling like hot stuff.
"She was asking me something and I started singing while she was talking to me. And there were some really cute guys in the store who were noticing me, and I was like, 'Oh yeah! I'm hot!' And my mom said, 'I'm talking to you'. And I kept singing. And so she smacked me - slapped me in my face, so hard.
"And my dad said, 'What are you doing?' Because I didn't get spankings growing up. They didn't believe in that. My mom says, 'She thinks she's hot stuff 'cos her single is out. Nobody cares about that! You are still my child. I brought you into this world, I can take you out of it! Now go sit in the car'. But it was the best thing she could have ever done to me because for the first time I realised I was losing sight of what was important."