Singing sensation Justin Bieber is helping raise money for his former high school by donating a pair of shoes to be sold on auction website eBay.com.

The Baby hit-maker has given the autographed purple Nikes to Stratford Northwestern Secondary School in Ontario, Canada, where he was a pupil before finding fame.

The right shoe went online on Monday in honor of the star's 17th birthday and has already attracted a high bid of $650. The other shoe will be auctioned at a later date.

Proceeds from Bieber's kicks, which are described as worn and scuffed, will be used to build a new broadcasting and communications studio at the school.
 
The footwear is sure to be a hot item - a lock of the star's hair sold for a staggering $40,668 and a space suit Bieber wore for a TV commercial fetched $5,800 at auction earlier this month.

 

 
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