Kylie Minogue will be headlining the 2007 Glastonbury festival in the UK as she continues to make a strong recovery from cancer treatment, insiders tell us. Kylie was forced to cancel her headline slot at the weekend-long outdoor music and arts festival in 2005 after she was diagnosed with breast cancer. But there are strong whispers that she will make up for her absence two years ago by performing this year. The maximum 137,500 tickets for the festival sold out in less than two hours on Saturday morning, even though the headline act had not been officially announced.