Justin Bieber

Justin Bieber gave his grandmother a surprise naked performance during Canadian Thanksgiving in October 2012. The incident took place at Justin's grandmother's home in Toronto. He had been staying at Diane’s house during the holiday.

Diane is the mother of Justin's mom Pattie Mallette. She found the prank hilarious and she defended her grandson against the criticism he received. She confessed that Justin's antics are completely normal.

'It's totally crazy,' Diane insisted according to RadarOnline. 'I feel sorry for Justin all the time, because paparazzi pick on him all the time. Anybody else's kids have done the same thing but nobody says anything. He's a 19-year-old boy. And before you criticise him, say, 'What is my 19-year-old boy doing?''

Justin was awarded recently at Teen Choice Awards, where he won the prise for male artist and took the crown for the hottest Twitter personality for his social networking updates.

"4 years in a row. #tcas. That's love. Thank u. Enjoying the break. But always here. Thank u. This is forever :)," Justin tweeted. "Our story. Our awards. Our songs. Our albums. Our tour. Our journey...just beginning. This is forever. Thank u. Love (sic)."