Beyonce (pictured performing at the Glastonbury Festival in England yesterday) bought 25 pairs of designer shoes for little sister Solange Knowles for her 25th birthday Friday. While the “Bills, Bills, Bills” singer was preparing for the Glastonbury fest, her assistant placed orders for designer heels at Saks and Bergdorf on Thursday, and they were delivered to her delighted sister the next day. Beyoncé is known for generous gifting; she bought her husband, Jay-Z, a $2 million Bugatti Veyron Grand Sport car for his 41st birthday in December.