Justin Bieber is going to spend his 17th birthday eating cheesecake with his grandparents.

The Canadian pop superstar says goodbye to being 16 next Tuesday (01.03.11) and, despite being one of the world's most famous singers, he insists he just wants to celebrate the day with his mother Pattie and his beloved grandfather and grandmother.

He told 'Entertainment Tonight': "Hopefully my grandparents will be out here and I'll be able to spend time, a little bit, with them. My grandma makes the best cheesecake - cherry cheesecake. She made that for my 13th birthday."

For his birthday, Justin - who has been in Europe for the last two weeks promoting his 3-D documentary movie 'Justin Bieber: Never Say Never' - is most looking forward to a well-earned rest for a few days before the next leg of his world tour kicks off in Birmingham, England, on March 4.

He said: "I only have, like, four days, so I'm just going to relax, because I start my world tour on March 4 - so I'm just going to mentally prepare and just relax."